Chapter 2, Verse 39
eṣā te’bhihitā sāṅkhye
buddhir yoge tvimāṁ śṛṇu
buddhyā-yukto yayā pārtha
karma-bandhaṁ prahāsyasi
O son of Pritha, this knowledge which has been taught to you so far concerns Sankhya. Hear now the teachings concerning yoga, for if you are in yoga, by this intelligence, you shall cast away the bondage of karma.
In this verse here, you can see that Arjuna is progressing from one step to another. Krishna sees that Arjuna is ready for the next step. He says, “I have been teaching you the yoga of the Self. I have just talked about how you will realise yourself: what you have to do, what you have to let go of, how you have to accept. Now I’ll talk about something greater, because I see that you have the attitude of equanimity inside of you. Now, we can move to the next teaching. Due to this attitude which you have cultivated, Arjuna, now we will talk about the yoga of equal attitude.”
Yoga means equanimity. Due to ignorance, one perceives the duality of this world, one perceives difference or diversity. But looking at it from the soul’s point of view, through Realisation, one gains true Knowledge. One will perceive no difference between one’s soul, the Atma and Paramatma. One will see that one is just a part of Paramatma, the Supreme Soul. The only difference which the soul will perceive, is in the quantity. But more than that, no. Because all the qualities which are in Paramatma, are in the Atma. One who is completely absorbed in this Divine Self, in God Consciousness, finds this unity everywhere. There is no trace of ignorance. Krishna says, “Hear Me! Now is the time to teach you how to attain this unity. Now I see that you have this interest and that you want to go deeper to possess this knowledge of the soul; and you are willing to do it. You have no conflicting feelings of heat and cold, or pleasure and pain. You don’t desire heaven and you don’t desire the kingdom. You are ready to know that, beyond all this, there is something greater.” Krishna advises Arjuna, “This attitude of equanimity which you have, is your spiritual discipline. Now I start telling you about the Jyaana Yoga and the Karma Yoga.”
Bhagavad Gita