Seeker has to have the indifference mentally to all the three states because the three states are mere mirage created out of consciousness.

The serious seeker should constantly reflect on the true self constantly through inquiry, analysis and reasoning, which is in the form of consciousness because it is the only means to acquire Self-knowledge. Self-knowledge is the only tool for the acquisition of final freedom from experiencing the illusory duality as reality. 

Seeker has to have the indifference mentally to all the three states because the three states are mere mirage created out of consciousness. Holding the three states as reality is great hindrance in pursuit of truth. Thus one has to remove all the obstacles and mental barricade one by one by realizing the self is not the form but the self is formless. The three states are perishable in their nature because they are mere mirage created out of consciousness. The consciousness, which is the formless substance and witness of the mirage, is real and eternal. Thus the consciousness is the inner most self. And knowing and realizing consciousness as self is the means to the attainment of Self- Realization or Truth Realization.

Consciousness is the true self is the formless substance and witness of the three states is alone real and permanent. The three states are an object opposed to it, which is transient – such a settled conviction is truly known as discrimination.

Turning attention completely from all the three states and concentrating only on consciousness which is the formless substance and the witness of the three states is the only means to acquire non-dual wisdom.