A slight sidetrack; In the book "Here, there and everywhere", Steve Spignesi and Michael Lewis made a very poignant observation about George Harrison's LSD songs ~ none of them produced anything joyous and happy. They were heavy and moody and left the distinct impression that drug enlightenment came at quite a cost to his mental demeanour. One gets the impression that acid left a sourpuss even more sour !
As far as I recall, I've only ever written two or three songs
under the influence because whether with marijuana, hash, acid, mushrooms, coke or amyl nitrate, the last thing I ever wanted to do.....was anything ! I was more inclined to read or in particular, listen to music {Pink Floyds' "Echoes" being a particular fave}.
Yet at the same time, I'd be naive if I said that being in a drug enhanced mode of life for four or five years, at the very same time I was writing songs, had no effect. My mind was certainly opened up to take on board ideas and sounds that I might otherwise not have.
By the same token, I have spent infinitely more years {both before and after} not in a drug enhanced mode of being and have embraced many ideas and sounds that I might not have, once in my life. It's hard to say exactly what was down to drugs, what was down to age, what was down to circumstance and what was down to straightforward liking.
I never tried drugs to make me
a songwriter or see God or be the key to life's meaning. It was curiosity, pure and simple, followed by a liking for, followed by the realization I'd reached the end of that particular road.
It's not hypocritical to say that I wouldn't recommend the use of drugs to enhance creativity but neither do I pretend it can't because the weight of evidence to the contrary is just too, well, weighty.