Samadhi...

Much of the writing of Plotinus is descriptive of the state Hindus
call Nirvikalpa Samadhi. It is the total dispersal of the world from
the field of awareness, a complete flight from sensations, thoughts,
mental images, the physical body, and, above all, from any and every
kind of activity. To an outside observer, it may seem to be a trance
state, but he would not be correct in his observation, nor altogether
wrong. It is as deep as contemplation can possibly go. It is
Consciousness freed from any kind of personal admixture, staying only
with itself. All these other things being removed, what is left is
then true self-knowledge, even if it is unconscious to the ego.

— Notebooks Category 23: Advanced Contemplation > Chapter 8: The
Void As Contemplative Experience > # 75...... Paul Brunton