Then who is the doer?

Since the Self is not a doer, it is flawless, and untainted by anything, why has Lord Krishna given so much importance and dedicated chapters of the Gita to that which is born of prakriti (nature), such as Gunas - Rajas, Tamas, Sattva, eight limbs of yoga, purification of thoughts, actions etc.

Ans: Because Self has not accepted flawlessness/ untaintedness in himself and therefore inspite of being complete; being part of God, is experiencing flaws, is entangled ,and is sufferring.. .sufferring. ... And sufferring.

God knows Jeeva has misutilised its Power of Belief. Hence, He gives a full chapter only on belief in Gita.He knows what are the pitfalls on Jeeva's way now. Jeeva is very independent. God has provided freedom to Jeeva. God can not withdraw that freedom. One who assumes- I am doer ONLY must assume I am not doer- "Naivam Kinchit karomiti yukto MANYET"-BG 5:8 - Yogi "accepts"- I do not do any thing. But Jeeva is independent. ... SWANTRAH KARTA- The doer is always independent. God can only impart now His Grace/ Kripaa/Compassion/ Truth/ Comfort through Scriptures and send Saints and Sages like Ved Vyas, Goswami Tulsidasji Maharaj, Param Shraddheya Swamiji Shri Ramsukhdasji Maharaj, etc.... so that Jeeva wakes up...does not worry...does not remain sorrowful... runs and comes in His loving arms.

Hence God on one hand states in Gita as to what truly a human is. What is true nature of Jeeva. He says- You are my child. You have no part of Prakruti in you. On the other hand, He knows that Jeeva is entangled. False has become Truth for Jeeva because of wrong acceptance/belief/ shraddha ! False has become part of Jeeva's experience. Hence God recognises the ACTUAL STATUS of Entangled/Sufferrin g Jeeva and teaches the Jeeva from that state of entanglement.

The Compassionate God keeps saying to Jeeva: Do not worry, Do not worry....Ma Suchah..Ma Suchah. He begins Gita addressing Jeeva's WORRY and ends Gita by saying DO NOT WORRY - Ma Suchah.

Accordingly - dozens of methodologies have been prescribed by God for Liberation of Jeeva from the chains of false assumption/wrong acceptance. Swamiji has elaborated upon many such methodologies. THE KARAN NIRAPEKSHA SADHANS explained for the benefit of humanity at large by Swamiji - require only KSHIPRAM TIME ( one-third of a second) to realise Paramatma. Jeeva can always choose any one based on his present state. In fact, God has to take into account present state of Jeeva and accordingly provide wisdom to him. Gita is "avataar". Lord Krishna was "avataar". Lord Krishna has to first lower Himself to the level of human, presume the same state in which the human is ACTUALLY (not theoritically) and then impart him the way forward from that state.