In hinduism there is the notion that talking drains one of ones energy.
The name for the hindu vow of silence is mauna.
Some people have alleged that if one is engaged in a vow of silence for awhile that one begins to think in ways beyond conventional language.
Silence may be viewed from a threefold standpoint:
- As an aid to the practice of good, for we keep silence with man, in order the better to speak with God, because an unguarded tongue dissipates the soul, rendering the mind almost, if not quite, incapable of prayer. The mere abstaining from speech, without this purpose, would be that “idle silence” which St. Ambrose so strongly condemns.
- As a preventative of evil. Senica, quoted by Thomas à Kempis complains that “As often as I have been amongst men, I have returned less a man” (Imitation, Book I, c. 20).
- The practice of silence involves much self-denial and restraint, and is therefore a wholesome penance, and as such is needed by all.
Some monasteries in Europe developed ways of communicating through gestures due to vows of silence observed by the monks.