If you believe that you know Him well, then undoubtedly, you know only a little of the nature of Brahman.
You have to analyze his 'that' form which you are, his 'that' form which is in the gods. Then I consider 'him' as known.
I do not believe that I know Him (the Absolute Truth) well, yet I know that He is not unknown to me.
He who knows 'this' among us knows that 'Paratattva'.
He knows that 'this' is not unknown to him.
That by which it is not 'thought' has the idea of 'it'; The one by whom 'It' is contemplated does not know 'It'.
For those who discuss 'this', 'this' is unknown, for those who do not try to discuss 'this', 'this' is known.
When it is known by such a direct perception that reflects It, then only one can form an idea of It, for by that one attains immortality; For achievement, a person receives semen (power) from the soul and immortality is attained from knowledge.
If a person acquires that knowledge here (in this world), then the existence of a person is meaningful, if he does not get that knowledge here, then there is great destruction.
Wise people become immortal by interpreting 'that' in various ghosts and substances, leaving this world.