The Lord relates on how he manifestes himself into this world in bodily form. We will also discuss the process of time and our duty in life. The Lord Spoke: Arjuna, whenever righteousness is on the decline and unrighteousness is in the ascendant, then I body Myself forth. For the protection of the virtuous, for the extirpation of evil-doers, and for establishing Dharma (righteousness) on a firm footing, I am born from age to age. The four orders of society (viz., the Brahmana, the Ksatriya, the Vaisya, and the Sudra) were created by Me, classifying them according to the Gunas predominant in each and apportioning corresponding duties to them; though the originator of his creation, know Me, the Immortal Lord, to be a non-doer.