Mamsa sadhana is an important concept in yoga because many believe that as part of spiritual practice, yogis should only talk when it is necessary. This allows for them to be introspective, focus and look inside themselves.
Some sources say that the deeper purpose of mamsa sadhana is for the yogi to withdraw their senses and their energy into themselves to connect with the Divine within and see that it is the God that creates flesh and life. Recognizing that connection to the Divine makes this one optional route to enlightenment or Self-realization.
The idea of mamsa is symbolized in Tantric yoga by khecari mudra. In khecari mudra, the tongue is folded toward the back of the throat, which symbolizes the eating of meat. It also represents the control of the tongue and, thus, of speech.