All beings in the world, O Bhārata, O Parantapa, are, at the very time of birth, subjected to the delusion of duality arising from likes and dislikes.
Krishna presents the fundamental truth about how everyone’s life commences in the world, making the role of spiritual understanding and pursuit clear and easy.
Right at the time of birth, all beings are imbued with a strong two-fold delusion, whereby each responds to all contacts and interactions with love and hate, fondness and resentment. It will be either of the two every time that springs from the individual, whenever any sensory impact takes place.
If something bitter is placed on the tongue of a new-born child, he will resent it. If something sweet is given, the child will suck it with relish.
As one grows, the same twin reactions become more and more pronounced, and imbibe stronger and newer notes. Kāma and krodha (desire and anger), Krishna pointed out (2.62, 3.37), are the growth and development of these basic notes of love and hate.