Based on the instruction that was recommended by the guru here. It is my understanding that one would’ve atleast had to complete the first 5 stages of patanjali yoga or have some prior life history of doing so to even put this into practice.

The preliminary stage for its implementation seems like an advanced pratyahar practice which results in “attending to the sense I am.” That is, a focus on the sense of identity without any influence from the intellect, kundalini and memory adjuncts.

On another note. It came to mind now that the reason why Ramana Maharshi and Nisargadatta Maharaj are often mentioned together. Is because a contemplation on “I am that,”(Sense of Identity) and it’s temporary suspension, may lead to the realization of “who am I”(CoreSelf). Before, I thought that the former and latter were guru and disciple. This is just my speculation with limited knowledge of their teachings.