nāyakānām—of all heroes; śiroratnam—the crown jewel; kṛṣṇaḥ—Lord Kṛṣṇa; tu—but; bhagavān svayam—the Supreme Personality of Godhead Himself; yatra—in whom; nityatayā—with permanence; sarve—all; virājante—exist; mahā-guṇāḥ—transcendental qualities.