Self is not a thing unknown to any one at any time. Let a man think. As soon as waking experience comes, there must be a knower there before in order to know that he is in waking experience.
The formless witness exists before the waking appears or the thing is
seen; otherwise neither knowledge nor sensation could happen. The
formless witness is always there. Even if one say it can be reached only
at the end of a long path, it is impossible for it to be ever absent
even while he says this.
The knower alone makes it
possible for one to know anything at all. “Though, thus quite
self-evident, easily known, quite near, forming the self, Ataman
appears, to the unenlightened mind as unknown, very remote, as though he
were a separate thing. Those who do not look at the seer, the witness,
and perceive it is the only thing that neither comes nor goes, are
deluded, and turn outward towards things objective, which run away. –
FORMLESS PATH