Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 40


निश्चलाम्बुरभूत्तूष्णीं समुद्र: शरदागमे ।आत्मन्युपरते सम्यङ्‍मुनिर्व्युपरतागम: ॥ ४० ॥


niścalāmbur abhūt tūṣṇīṁsamudraḥ śarad-āgameātmany uparate samyaṅmunir vyuparatāgamaḥ


With the arrival of autumn, the ocean and the lakes became silent, their water still, just like a sage who has desisted from all material activities and given up his recitation of Vedic mantras.


One recites ordinary Vedic mantras for material promotion, mystic power and impersonal salvation. But when a sage is completely free of personal desire, he vibrates the transcendental glories of the Supreme Lord exclusively.