user8157: A translation of SN 12.2 says: 

And what is dependent co-arising? From ignorance as a requisite condition come fabrications. From fabrications as a requisite
  condition comes consciousness. From consciousness as a requisite
  condition comes name-&-form. From name-&-form as a requisite condition
  come the six sense media. From the six sense media as a requisite
  condition comes contact. From contact as a requisite condition comes
  feeling. From feeling as a requisite condition comes craving. From
  craving as a requisite condition comes clinging/sustenance. From
  clinging/sustenance as a requisite condition comes becoming. From
  becoming as a requisite condition comes birth. From birth as a
  requisite condition, then aging & death, sorrow, lamentation, pain,
  distress & despair come into play. Such is the origination of this
  entire mass of stress & suffering.

The impression of the above text is - for sorrow, lamentation, pain, distress & despair to come into play - aging & death must occur. 
I have two questions: 

If death must occur for sorrow, lamentation, pain, distress & despair to come into play; what is the cause for people having sorrow, grief & despair before death, i.e., in the present moment? 
If death must occur for sorrow, lamentation, pain, distress & despair to come into play; is sorrow, grief & despair only experienced after death? 


user-1: 
This is another problem when refusing to accept regrouping of 5 skandhas after breaking up of this body. You don't believe in reappearing after death so you have trouble understanding things like this.


If death must occur for sorrow, lamentation, pain, distress & despair to come into play; what is the cause for people having sorrow,
  grief & despair before death, i.e., in the present moment?


When someone from your family die you will grieve, feel sad and cry won’t you?
When you are at the moment of death you will feel sad won’t you? Other people will feel sad for you won’t they? You might have regret about a lot of things and people who care about you will have pain and sorrow.


If death must occur for sorrow, lamentation, pain, distress & despair to come into play; is sorrow, grief & despair only experienced
  after death?


Sorrow, lamentation, pain, distress and despair can come into play for other people who love you after you die. You can have pain, sorrow or lamentation when you are dying. If you were not dying then you wouldn’t feel sad because of it and other people who care about you wouldn’t feel sad if you were not dying. They might have pain about other things like losing their job but that’s another thing. 
I think becoming, birth, aging and death, sorrow, lamentation are future lives. Consciousness, name and form, six sense media, contact, feeling, craving and clinging are this present life. Ignorance and fabrication are previous life. 
Dependent origin cannot be understood by thinking intellectually. I think an arahant would be able to understand and contemplate it.


user10100: 
If death must occur for sorrow, lamentation, pain, distress & despair
  to come into play; what is the cause for people having sorrow, grief &
  despair before death, i.e., in the present moment?
If death must occur for sorrow, lamentation, pain, distress & despair
  to come into play; is sorrow, grief & despair only experienced after
  death?

Aging & death must come together to show "if you born without
    unstable, it's ok. But actually, your life is unstable because it's
    going to be aging & death, it's not ok. Because while you are living, birth+aging+death, you are going to have sorrow, lamentation, pain, distress & despair to come into play aging & death." 
Pali context only shows birth causes "aging & death, sorrow, lamentation, pain, distress & despair to come into play". Nothing in pāli context shows aging & death cause "sorrow, lamentation, pain, distress & despair to come into play". 

jātipaccayā     jarāmaraṇaṃ  sokaparidevadukkhadomanassupāyāsā sambhavanti.

So, your both questions are misunderstood pali context. There is nothing in pali context shows  "death must occur for sorrow, lamentation, pain, distress & despair to come into play". Pāli only shows birth causes "aging & death, sorrow, lamentation, pain, distress & despair to come into play".
In the other hand by pāli context, the sequence of paṭiccasamuppāda is "birth >> aging&death, sorrow, lamentation, pain, distress & despair to come into play". It is not "birth >> aging >> death >> sorrow, lamentation, pain, distress & despair to come into play". 

8157: <p>A translation of SN 12.2 says: </p>

<blockquote>
  <p><em>And what is dependent co-arising? From ignorance as a requisite condition come fabrications. From fabrications as a requisite
  condition comes consciousness. From consciousness as a requisite
  condition comes name-&amp;-form. From name-&amp;-form as a requisite condition
  come the six sense media. From the six sense media as a requisite
  condition comes contact. From contact as a requisite condition comes
  feeling. From feeling as a requisite condition comes craving. From
  craving as a requisite condition comes clinging/sustenance. From
  clinging/sustenance as a requisite condition comes becoming. From
  becoming as a requisite condition comes birth. From birth as a
  requisite condition, then aging &amp; death, <strong>sorrow, lamentation, pain,
  distress &amp; despair</strong> come into play. Such is the origination of this
  entire mass of stress &amp; suffering.</em></p>
</blockquote>

<p>The impression of the above text is - for sorrow, lamentation, pain, distress &amp; despair to come into play - aging &amp; death must occur. </p>

<p>I have two questions: </p>

<ol>
<li><p>If death must occur for sorrow, lamentation, pain, distress &amp; despair to come into play; what is the cause for people having sorrow, grief &amp; despair before death, i.e., in the present moment? </p></li>
<li><p>If death must occur for sorrow, lamentation, pain, distress &amp; despair to come into play; is sorrow, grief &amp; despair only experienced after death? </p></li>
</ol>
 -1: <ol>
<li>This is another problem when refusing to accept regrouping of 5 skandhas after breaking up of this body. You don't believe in reappearing after death so you have trouble understanding things like this.</li>
</ol>

<blockquote>
  <p><strong>If death must occur for sorrow, lamentation, pain, distress &amp; despair to come into play; what is the cause for people having sorrow,
  grief &amp; despair before death, i.e., in the present moment?</strong></p>
</blockquote>

<ol start="2">
<li><p>When someone from your family die you will grieve, feel sad and cry won’t you?</p></li>
<li><p>When you are at the moment of death you will feel sad won’t you? Other people will feel sad for you won’t they? You might have regret about a lot of things and people who care about you will have pain and sorrow.</p></li>
</ol>

<blockquote>
  <p><strong>If death must occur for sorrow, lamentation, pain, distress &amp; despair to come into play; is sorrow, grief &amp; despair only experienced
  after death?</strong></p>
</blockquote>

<ol start="4">
<li><p>Sorrow, lamentation, pain, distress and despair can come into play for other people who love you after you die. You can have pain, sorrow or lamentation when you are dying. If you were not dying then you wouldn’t feel sad because of it and other people who care about you wouldn’t feel sad if you were not dying. They might have pain about other things like losing their job but that’s another thing. </p></li>
<li><p>I think becoming, birth, aging and death, sorrow, lamentation are future lives. Consciousness, name and form, six sense media, contact, feeling, craving and clinging are this present life. Ignorance and fabrication are previous life. </p></li>
<li><p>Dependent origin cannot be understood by thinking intellectually. I think an arahant would be able to understand and contemplate it.</p></li>
</ol>
 10100: <blockquote>
  <p>If death must occur for sorrow, lamentation, pain, distress &amp; despair
  to come into play; what is the cause for people having sorrow, grief &amp;
  despair before death, i.e., in the present moment?</p>
  
  <p>If death must occur for sorrow, lamentation, pain, distress &amp; despair
  to come into play; is sorrow, grief &amp; despair only experienced after
  death?</p>
</blockquote>

<p>Aging &amp; death must come together to show "if you born without
    unstable, it's ok. But actually, your life is unstable because it's
    going to be aging &amp; death, it's not ok. Because while you are living, birth+aging+death, you are going to have sorrow, lamentation, pain, distress &amp; despair to come into play aging &amp; death." </p>

<p><a href="http://84000.org/tipitaka/read/roman_item_s.php?book=16&amp;item=4&amp;items=15&amp;h=j%C4%81tipaccay%C4%81%20%20%20%20%20jar%C4%81mara%E1%B9%87a%E1%B9%83%20%20%20%20%20sokaparidevadukkhadomanassup%C4%81y%C4%81s%C4%81" rel="nofollow noreferrer">Pali context</a> only shows birth causes "aging &amp; death, sorrow, lamentation, pain, distress &amp; despair to come into play". Nothing in pāli context shows aging &amp; death cause "sorrow, lamentation, pain, distress &amp; despair to come into play". </p>

<blockquote>
  <p>jāti<strong>paccayā</strong>     jarāmar<strong>aṇaṃ</strong>  sokaparidevadukkhadomanassupāyā<strong>sā</strong> sambhavanti.</p>
</blockquote>

<p>So, your both questions are misunderstood pali context. There is nothing in pali context shows  "death must occur for sorrow, lamentation, pain, distress &amp; despair to come into play". Pāli only shows birth causes "aging &amp; death, sorrow, lamentation, pain, distress &amp; despair to come into play".</p>

<p>In the other hand by pāli context, the sequence of paṭiccasamuppāda is "birth >> aging&amp;death, sorrow, lamentation, pain, distress &amp; despair to come into play". It is not "birth >> aging >> death >> sorrow, lamentation, pain, distress &amp; despair to come into play". </p>
