Gnosis of the Soul

It is not coarse, not fine, not short, not long, . . without shadow, without darkness, without air and without space, intangible, odorless, tasteless, without eye, without ear, without voice, without mind, without energy, without breath, without mouth . . unaging, undying, without fear, immortal, without stain, without measure, without inside and without inside.

[Brihadaranyaka 3.8.8]

Upanishads