Bhagavad Gita: ~ The permanent is always there, only the transient ‘I’ comes and goes.+

Bhagavad Gita: ~ The permanent is always there, only the transient ‘I’ comes and goes. (2.18) 

The ‘I’ hides the Soul, the Self, which is ever nondual.

People think the ‘I’ without the body is the Self. The seeker has to understand the fact that ‘I’ is not the Self, but the witness of the ‘I’ is the true Self, which is eternal.

That is why Ashtavakra Gita 16:10: ~ If you desire liberation, but you still say 'I', if you feel the ‘Self’ is the ‘I’, you are not a wise man or a seeker. You are simply a man who suffers.

People are stuck with the reality of the ‘I’, which they take it as real because some Gurus have propagated that the Self is the ‘I’. is no need to convince such mindsets. The seeker of truth accepts only the truth nothing but the truth.

That is why Sage Sankara says: - VC-65. As a treasure hidden underground requires (for its extraction) competent instruction, excavation, the removal of stones and other such things lying above it, and (finally) grasping, but never comes out by being (merely) called out by name, so the transparent Truth of the Self, which is hidden by Maya and its effects, is to be attained through the instructions of a knower of Brahman.

People refuse to accept anything other than their Guru's words. For them, their Guru's words are the ultimate truth. They do not accept anything else other than their accepted truth. There is no need to convince such a mindset.

Such a mindset is not fit to acquire Self-knowledge or Brahma Gnana or Atma Gnana. The seekers of truth accept only the truth nothing but the uncontradictable truth. : ~ Santthosh Kumaar