If your mind is too open you'll believe dumb shit and become a goofy little guru kid that everyone makes fun of behind their back. This happens to alot of new psychadellic users. Eventually they catch on that people are laughing at them, so they knock that shit off.

There are some real psychadellic people out there. Timothy Leary, John Lily, Albert Hofmann, all come to mind. Just know you aren't one of these people and you'll be fine.

However, not everyone catches on and they get caught up in some silly "I can read mindsessess!!" or like "I saw the meaning of the universe.. if only I could remember..." for way too long.

As long as after your trip you can remember that it's merely a drug that has intense effects on your mind, you'll be fine.