I think your mind either expands or shrinks under either an alcoholic or drug induced state...You can have the most profound thoughts while under both effects and they will make so much sense but if you do not write them down they are obviously lost forever...I have mind boggling ideas that are so profound I am surprised when I wake up in the morning there's not a cult following me...or is this just me...lol
I can say that as a songwriter I have ideas about songs, or even just random dreams while I'm going to bed, and then after I wake up they're gone. I can't remember a damn thing about them. It even happens when I'm awake sometimes. I'll have an idea and then I'll do even just the simplest thing instead of sticking to what I'm thinking about and then the idea is gone. It's like the idea slips into a void or something. That's why they tell you that you should write an idea down immediately or record it right away. I don't know if they're profound ideas or songs, and they aren't drug induced, but they happen. There is some place we "go" that seems to be that state in between sleep and awareness where we can think of wonderful things, but not remember them when we come back to "reality". WTF? Lol
I think better when I'm relaxed. I mean I think better philosophically. I don't drive better drunk. But not just philosophically. When I was in college, doing very non-philosophical stuff like spreadsheets and annual rates of return, being somewhat drunk really helped open my mind to tricky questions.