When hunting, the tribe is quiet, for obvious reasons, if the hunt is to be successful
but the tribe would still be communicating
and unity of means and purpose would ensure the outcome favourable to the aims of the hunters
so silence of the lips can afford a powerful way to interact with your environment, and your fellow Man, for the welfare and prospering
of the Human tribe, and what would a Hermit be hunting if not a peaceful mind heart and soul for the benefit of Mankind communicated not primarily with the spoken, or written word, but the spiritual, unseen benefit of being united, as far as is possible, with love.