user8817: I am practising mindful breathing and after a while it takes my concentration directly to my forehead. I tried to be in thoughtless state and just keep watching my forehead. After this practice for 2 or 3 days i feel a kind of pressure in my forehead for a day now. is this normal ? i am hesitated to continue my practice because of this. why i experience this sensation ?

user8044: May be that your problem lies in taking literally what your meditation master said.  If you find that focusing on the breath gets you distracted, the normal advice that you get is to just focus right between your eyes, or the middle of the forehead when breathing.  The problem comes when you stare right there literally.  While sitting upright, you should ‘touch’ that  spot with your mind’s eye,  and not strain to focus your eyes to that spot.

user2282: The suttas didn't place any restriction on what area of the body one can focus on for mindfulness of breathing meditation. But there're 2 areas commonly taught by most masters and widely practiced: the nostril gates or the diaphragm. The nostril gates are taught in the Visuddhimagga commentary (starting from page 259). If you find some discomfort during meditation, please consult your meditation master if you have one. I you don't have one, make sure to closely follow the textual instruction and try switching the focus to the nostril gates to see if it helps.

user8157: This sensation is being experience probably because you are deliberately focusing your intention on your forehead. Your post states:

I tried to...just keep watching my forehead.

Practising mindful breathing probably takes your concentration directly to your forehead because you are probably concentrating with your forehead. 
There is no need to 'concentrate' to practise mindfulness with breathing. If you simply let go & make the mind quiet, awareness of breathing will still occur. 
This is because when the mind is quiet & not craving, breathing becomes the most gross or dominant sense object for the mind. 
That is why the 8 fold path does not start with concentration but ends with concentration. 
'Mindfulness' means to let go of craving. When the mind is quiet, it starts to 'collect' or 'gather' itself, which is the meaning of 'concentration' ('samadhi' - 'collectedness'). 

8817: <p>I am practising mindful breathing and after a while it takes my concentration directly to my forehead. I tried to be in thoughtless state and just keep watching my forehead. After this practice for 2 or 3 days i feel a kind of pressure in my forehead for a day now. is this normal ? i am hesitated to continue my practice because of this. why i experience this sensation ?</p>
 8044: <p>May be that your problem lies in taking literally what your meditation master said.  If you find that focusing on the breath gets you distracted, the normal advice that you get is to just focus right between your eyes, or the middle of the forehead when breathing.  The problem comes when you stare right there literally.  While sitting upright, you should ‘touch’ that  spot <strong>with your mind’s eye</strong>,  and not strain to focus your eyes to that spot.</p>
 2282: <p>The suttas didn't place any restriction on what area of the body one can focus on for mindfulness of breathing meditation. But there're 2 areas commonly taught by most masters and widely practiced: the nostril gates or the diaphragm. The nostril gates are taught in the <a href="http://www.accesstoinsight.org/lib/authors/nanamoli/PathofPurification2011.pdf" rel="nofollow">Visuddhimagga</a> commentary (starting from page 259). If you find some discomfort during meditation, please consult your meditation master if you have one. I you don't have one, make sure to closely follow the textual instruction and try switching the focus to the nostril gates to see if it helps.</p>
 8157: <p>This sensation is being experience probably because you are deliberately focusing your intention on your forehead. Your post states:</p>

<blockquote>
  <p><em>I tried to...just keep watching my forehead.</em></p>
</blockquote>

<p>Practising mindful breathing probably takes your concentration directly to your forehead because you are probably concentrating with your forehead. </p>

<p>There is no need to '<em>concentrate</em>' to practise mindfulness <strong><em>with</em></strong> breathing. If you simply let go &amp; make the mind quiet, awareness of breathing will still occur. </p>

<p>This is because when the mind is quiet &amp; not craving, breathing becomes the most gross or dominant sense object for the mind. </p>

<p>That is why the 8 fold path does not start with concentration but ends with concentration. </p>

<p>'Mindfulness' means to let go of craving. When the mind is quiet, it starts to 'collect' or 'gather' itself, which is the meaning of 'concentration' ('samadhi' - 'collectedness'). </p>
