LOVE this.
I get this every now and then without any drugs.
You can run around and do whatever you want, knowing there won't be any consequences.
If there's a crazy situation going on with other people in my dream, I'll tell them not to worry. It's just a dream and it isn't real. Usually they don't believe me, but on occasion they'll breathe a sign of relief and realize everything's a dream too. Sometimes it takes something superhuman for me to realize I'm dreaming. For instance, if I'm drowning and I'm about to "die" and take a breath while underwater, I realize it's a dream when I don't "die". Then I can swim around, breathing underwater, doing crazy crap. I could go on and on about this. Truly elite.