CC Madhya 9.144
ataeva lakṣmīra kṛṣṇe tṛṣṇā anukṣaṇa
“Because Kṛṣṇa has four extraordinary qualities not possessed by Lord Nārāyaṇa, the goddess of fortune, Lakṣmī, always desires His company.
Lord Nārāyaṇa has sixty transcendental qualities. Over and above these, Kṛṣṇa has four extraordinary transcendental qualities absent in Lord Nārāyaṇa. These four qualities are (1) His wonderful pastimes, which are compared to an ocean, (2) His association in the circle of the supreme devotees in conjugal love (the gopīs), (3) His playing on the flute, whose vibration attracts the three worlds, and (4) His extraordinary beauty, which surpasses the beauty of the three worlds. Lord Kṛṣṇa’s beauty is unequaled and unsurpassed.