Adwitaveranta is one of the many paths for a predominant, philo fical flavor of hinduism. The conclusions have been arrived at by the mystics of great world religions. Recaasks, rituals and puja could even be performed simply for the love of god,. not for any special benefit. If you perform it for the loveof god, not for anyspecial benefit, you are already on the path of higher spirituality.
Swami Sarvapriyananda teaches the Katha Upanishad, which is one of the most popular Upanishads. The scripture concerns the story of a young man who goes to the house of death to find out what happens after death. The reply describes the nature of reality and the meaning of life.