user21515: I started meditation with Headspace app and have experienced a lot during meditation such as irrational fear of someone breaking in to the house and killing me while I was meditating , fear of snakes etc.
I am off headspace for about six months now and my Vipassana practice has improved a lot. The chattering in my head has subsided but now I see lot of random images flashing while I meditate. These images don't have to mean anything but these images are nothing I have seen or imagined in my life so far. Should I wonder about their meaning or should I continue to the adage of letting it all go and focus on the moment?

user315: Everyone’s answers on here are speculative at best (though @Codosaur does offer some useful information that is scientifically grounded).  The truth is, it probably doesn’t mean anything at all.  That said, the mind is a potent machine, and you would do well to be wary of any experience that is overly unpleasant and/or dramatically pleasurable or “spiritual”.  If it becomes something that interferes with your practice, I would advise consultation with someone at a more intimate level, e.g a doctor, teacher, etc.
Assuming it’s not something to be concerned about (it probably isn’t), your best bet is to let it be and treat it like any other mental mischief.  Something to be noticed, accepted, and then forgotten.  It is almost certainly not something that has any cause or meaning that will be useful for your practice.

21515: <p>I started meditation with Headspace app and have experienced a lot during meditation such as irrational fear of someone breaking in to the house and killing me while I was meditating , fear of snakes etc.<br />
I am off headspace for about six months now and my Vipassana practice has improved a lot. The chattering in my head has subsided but now I see lot of random images flashing while I meditate. These images don't have to mean anything but these images are nothing I have seen or imagined in my life so far. Should I wonder about their meaning or should I continue to the adage of letting it all go and focus on the moment?</p>
 315: <p>Everyone’s answers on here are speculative at best (though @Codosaur does offer some useful information that is scientifically grounded).  The truth is, it probably doesn’t mean anything at all.  That said, the mind is a potent machine, and you would do well to be wary of any experience that is overly unpleasant and/or dramatically pleasurable or “spiritual”.  If it becomes something that interferes with your practice, I would advise consultation with someone at a more intimate level, e.g a doctor, teacher, etc.</p>
<p>Assuming it’s not something to be concerned about (it probably isn’t), your best bet is to let it be and treat it like any other mental mischief.  Something to be noticed, accepted, and then forgotten.  It is almost certainly not something that has any cause or meaning that will be useful for your practice.</p>
