Actually I remember seeing a lecture by a drug researcher (I think it was about LSD) on YT, where exactly this was part of the topic. As it seems there is a very special mechanism in the brain that is responsible to give us the feeling of something being "profound" and needing attention. It gets usually activated seldomly. So he explained how LSD changes the neuro functioning so that all the time this mechanism gets activated or something like that. So that all the time, eg. when looking at a flower, or the wall, etc, you think this is something deep and profound and you are in awe.

I found that rather interesting.

Edit:

Found it. Was a lecture by David Nichols and part of it was about the "locus coeruleus".

I mean this lecture [MEDIA=youtube]ZJtdZUy1LYE[/MEDIA] at about 30Mins.