But the atman principle is to focus development within the soul is similar to access to nirvana of Buddhism. With the words mentioned in upnisat. Various rituals are not sufficient for providing to lifted. In a vasectomy will make men lifted from birth and death.
But the spirit is focused on the development of mind akin to reach nirvana of Buddhism, Vedanta has said in the rituals is not enough for man to carry out. The knowledge of Brahman only. To make men free from birth and death.