Srimad Bhagavadgita Sadhaka Sanjivani -Swami Ramsukhdas
In order to renounce the known unreal, it is necessary that a striver should renounce the relationship which our discrimination does not support. Assuming a person, with whom we have neither eternal relationship nor identity of the self, our own and for us, is anti-discrimination relationship. So long as there is anti-discrimination relationship, no spiritual discipline will lead to Self-realization. By having affinity with the body, a person may undergo austere penance, may have trance, may go round the world, his delusion can't be destroyed and the Supreme Truth can't be attained. Having renounced the anti-discrimination relationship delusion is destroyed and the Supreme Truth is realized. Therefore a striver shouldn't be at ease without renouncing the anti-discrimination relationship. If we don't renounce our assumed anti-discrimination relationship with the body, the body will leave us certainly. Then what is the difficulty in renouncing our kinship with the body? Therefore a seeker may follow any discipline, he will have to accept the truth, "I am not body and the body is not mine and it is not for me because I am 'asariri' (self) and the self is unmanifest."
So long as a striver has the kinship of 'I' and 'mineness' with the body there is no realization of the Supreme Truth and he remains bound by virtuous actions, useful reflection and attachment to Trance. He may perform virtuous actions such as performance of sacrifice, undergoing penances, offering charity, may reflect upon the soul or the Supreme Soul or be established in trance, he is not totally free from bondage. The reason is that assumption of the kinship of the self with the body is the root of bondage and also of the flaw which causes all flaws. If the assumed affinity of a striver with the body is totally wiped out, sinful actions will not at all be performed by him and he will not be attached to virtuous actions. There will not be any meaningless reflection by him at all, and he will not be attached to meaningful reflection. He will not be fickle in the least and will neither be attached to trance, constancy or absence of all thoughts. Thus at the destruction of attachment of the gross (physical) body to actions, of the subtle body to reflection and of causal body to constancy, his aim will be attained viz., his delusion will be destroyed and the Supreme Truth will be realized. Therefore the Lord at the outset of His gospel has described the discrimination between the body and the self in order to wipe out a striver's (self's) relationship with the body.