{The highest state of Bhairava} is free of all notions pertaining to direction, time, ... space or designation. In verity that {state} can neither be indicated nor described in words.
(p. 14, verse 14)
The Ultimate Reality has been called avedya or unknowable in the sense that it is... the Eternal and Ultimate Subject of everything and cannot be reduced to vedya or object.
(p. 114, commentary on verse 127, dharana 102)
That which cannot be known as an object, that which cannot be grasped..., that which is void, that which penetrates even non-existence all that should be contemplated as Bhairava. At the end of that contemplation will occur Enlightenment.
(p. 114, verse 127, dharana 102)
... though {the highest state of Bhairava} is beyond description, it is not beyond experience. There are two indispensable conditions (both of which are interconnected) under which one can have an experience of it.