Why is Sadhana so long, and Self-Realization happens instantaneously?

Our Sadhana is protracted, taking a long time, because our ignorance is profound; dismantling the structure of our mind, filled with ideas, beliefs, and concepts, is a time-consuming process.

They all require a lot of preparation (scriptures, discourses, dialogues with those who have gone through this before, applying this to your daily lives to see if what the spiritual knowledge says is true or not, etc.).

All this requires mumukshutva (intense desire to be free).

But with all that, when you are ready, it does not take any time for the consciousness to manifest because consciousness is right there. ( Kan kan mei, aur kahan kshan mei bhagwan hei ). ( He is in every morsel, and in every moment ).

He has been waiting for us, and for a while, to give you a taste of what Advait is.

But we have been too busy playing with Sansar for a long time, which is nothing but duality.

Duality and Advait cannot coexist, just as a dream and an awake state cannot coexist.