When it comes to drugs+meditation, that will never mix. Meditation only works when as sober as possible.
There have been those that used certain kinds of drugs and got their "moment of insight" from that.
Ramm Dass for instance
I used to smoke cannabis and do LSD in the 70s and I can say that they were only helpful because they started me on my spiritual quest. This was also true of Ram Das. He experimented with LSD but it didn't satisfy because he always came down again, so eventually he went off to India where he met his Guru, Neem Karoli Baba (or Maharaji). Maharaji asked RD to give him some LSD, and he ingested a huge amount but nothing happened. He was already 'there' so it had no effect on him.
I know of people who still smoke regularly and often and they're nice people, but the trouble is, they're in the same head space as they were in the 70s. There's nothing wrong with that I suppose if you want to coast through life, but if you're looking for spiritual growth, the real and lasting effects come from meditation with a clear mind and applying the insights in daily life. It takes perseverance and determination but it brings such happiness and peace of mind.
Wishing you all such joy
Bhavya
