You know that is a good question.

As a kid I used to really enjoy playing around with different ways to produce these phosphenes (didn't know they had a name!)

When I found psycadelics I noticed that they frequently resembled these phosphenes I had enjoyed as a kid.  I have always been able to produce them simply by staring at a blank wall or in darkness. 

Great first post.

Please don't take this the wrong way, but on this forum we generally try to abstain from "bad language" in general conversation...(e.g. Shit man, what a fat ass f-ing trip I just had, it was f-ing amazing).  It's not a Nazi type control thing I swear, we're all just trying to keep the forum on a rather sophisticated level. Thanks