To know the Self and to discover the ultimate truths behind the world of phenomena, and thereby getting rid of the sufferings of life caused by ignorance is what forms the core of the teachings of the Upanishads.

Desires, attachments and cravings for worldly enjoyments are due to wrong identification of the body, mind and the senses. A person, who discovers him to be different from all these associations, can no longer be fettered by samsara.