system
A chat on 4chan
human
oh yeah first stop wikipedia, there is definitely something to this

Despite the common misconception, no major Christian monasteries or religious orders take such a vow. However, most monasteries have specific times (magnum silentium, work silence, times of prayer, etc.) and places (the chapel, the refectory, etc.) where speaking is prohibited unless absolutely necessary. Even outside of these times and places, useless and idle words are forbidden. In active orders the members speak according to the needs of their various duties.[4]

In the Indian religions, religious silence is called Mauna and the name for a sage muni (see, for example Sakyamuni) literally means 'silent one'.[5] In Buddhism, it is also explicitly stated that 'one does not become a sage simply because of a vow of silence' due to the prescription for disciples to also teach the Buddhist doctrine.[6] The vow of silence is also relevant in the training of novices and is often cited as a way to resist the allures of samsara, including those posed by the opposite sex.[7] Buddhist monks who take a vow of silence often carry an iron staff called khakkhara, which makes a metallic noise to frighten away animals. Since they cannot speak, the rattle of the staff also announces their arrival when they start begging for alms.[8]

Mahatma Gandhi observed one day of silence a week, every Monday, and would not break this discipline for any reason.[9]
gpt
Vipassana teaches noble silence to achieve the goal of insight.
In other types of meditation, mantras are recited aloud in combination with musical instruments.
GAY KW
human

agreed but maybe some power they recognized there, digging to find more on silence.