"Used properly and constructively, retreat is both a useful, and necessary, means for supporting self-evolution. If undertaken with intention, and not as foil for wallowing or self-pity, it can be a powerful tool for bringing us to our own next level, becoming more fully present in both ourselves and our lives."
From "Psychological and Spiritual Benefit of Interior Retreat" by Michael Formica
The Benefits of Silence (link)
"When you do not talk, you become more sensitive to your external environment. After a week of silence, Tijn Touber exclaimed, 'Never before had I felt such intense contact with everything around me – precisely because I hadn’t uttered a word. It was as if all my senses were wide open….'"
from "The Benefits of Silence" by Lloyd J. Thomas