The Gnana route.
First a quiz!
Have you come across the following lines in a movie?
“What is real? How do you define real? If you are talking about what you can feel, what you can smell, what you can taste and see they are simply electrical signals interpreted by your brain!”
Wait for the answer.
To clean up the mind and start inquiring with it, seeking the answer to the question “who am I?” Start discarding what you perceive that “I am not” after deep analysis. Finally what remains is what you are. This is what gnana route is.
In short such an analysis will lead to the concept “Only Brahman exists, all this universe is maya.”
Now the word maya can be interpreted variously.
It does not mean untruth or falsehood. It may be taken as illusory. But perhaps a closer meaning could be ephemeral (transient, short lived, fleeting, passing, brief, momentary, temporary) .
In the laboratories scientists experiment with isotopes that have a very short span of life. One might say they are irrelevant as they are so short lived. Stop to think for a minute. So are we! Compared to the age of the universe our life span is so short like that of an isotope compared to our life span.