No one has ever investigated and realized the form, time and space together is mind.

As person, one is within time and space. The form, time and space are within the mind.  The form, time and space rise together and subside together. Without form than there is no time and space. Without time than there is no form and space. Without space than there is no form and time. The form, time space together is mind. Thus form, time and space is mind.   The mind is present in the form of ‘I’. Thus ‘I’ is not limited to waking entity or ego but ‘I’ is the mind. And mind is whole universe. 

The mind is in the form of universe. The universe appears as waking or dream.   No one has ever investigated and realized the form, time and space together is mind.  

Only when the mind is present than only the form, time and space exists. The mind is in the form of universe. Form, time and space are present only when the universe is present. The universe is present only in waking or dream. 

The individual experience of birth, life, death and the world are within the waking or dream. Only when there is duality there is ignorance. When there is ignorance the illusion is experienced as reality. When illusion is experienced as reality the birth, life, death and the world are experienced as reality.  If birth, life and death and world are considered as reality it is impossible to realize the ultimate truth or Brahman.  

Deeper self-search reveals the fact that, the self is neither the waking entity nor the self is dream entity but self is formless substance and witness of the three states. And the formless substance and witness are one in essence and that essence is formless   consciousness.  The consciousness (soul) is the innermost self.  On the standpoint of the innermost self: - 

1.      The form, time and space are mere illusion. 

2.      Three states are mere illusion. 

Thus the formless substance and witness of the illusion is real and eternal. The formless substance and witness of the illusion is consciousness, the innermost self.  Thus consciousness is ultimate truth or Brahman.