“Even as a deep, still lake is clear and unruffled, so the wise become thoroughly serene upon hearing the teachings of Dhamma.”
Canonical Pali Original: Yathāpi rahado gambhīro, vippasanno anāvilo; Evaṃ dhammāni sutvāna, vippasīdanti paṇḍitā.
— Gautam Buddha
The Awakened One, Founder of Dhamma
Pali Canon: Dhammapada 6.82 on the calming, clarifying effect of wisdom and ethical contemplation.