It actually makes the perfect sense, I would probably describe my experience as
kenshō. I became the world, I was one with it, not a separate being and that's
bliss. It's been several years now, but I still remember the feeling. I have not experienced it since even though I've had other kind of mystical experiences and peaceful states too through meditation and other avenues. I think Samadhi is something more profound, also you can't induce it with any substances, no matter how magical they might be.
The realization of Atman.
(...) I am of the nature of consciousness.
I am made of consciousness and bliss.
I am nondual, pure in form, absolute knowledge, absolute love.
I am changeless, devoid of desire or anger, I am detached.
I am One Essence, unlimitedness, utter consciousness.
I am boundless Bliss, existence and transcendent Bliss.
I am the Atman, that revels in itself.
I am the Sacchidananda that is eternal, enlightened and pure.
~ Tejobindu Upanishad