"One can find many great souls amongst yogīs and jñānīs, but a truly great soul, a pure devotee of the Lord, who is fully surrendered to the Lord, is very rarely found (sa mahātmā sudurlabhaḥ, BG 7.19). A devotee’s mind is always calm, quiet and desireless because he is always anyābhilāṣitā-śūnyam (CC Madhya 19.167), having no desire other than to serve Kṛṣṇa as His personal servant, friend, father, mother or conjugal lover. Due to his association with Kṛṣṇa, a devotee is always very calm and cool."
(Śrīmad-Bhāgavatam 4.24.20, Purport)
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