Nārada’s Arrival, the Nine Yogendras, and the Foundations of Bhāgavata-dharma
एवंव्रत: स्वप्रियनामकीर्त्या जातानुरागो द्रुतचित्त उच्चै: । हसत्यथो रोदिति रौति गाय- त्युन्मादवन्नृत्यति लोकबाह्य: ॥ ४० ॥
evaṁ-vrataḥ sva-priya-nāma-kīrtyā jātānurāgo druta-citta uccaiḥ hasaty atho roditi rauti gāyaty unmāda-van nṛtyati loka-bāhyaḥ
Así, firme en su voto, el devoto, al cantar el Nombre que más ama, se llena de amor; con el corazón derretido, ríe a carcajadas o llora o clama; a veces canta y danza como un loco, indiferente a la opinión pública.
In this verse, pure love of God is being described. Śrīla Śrīdhara Svāmī has described this spiritual situation as samprāpta-prema-lakṣana-bhakti-yogasya saṁsāra-dharmātītāṁ gatim, or the perfectional stage of life in which one’s devotional service to the Supreme Lord is enriched by ecstatic love. At that time, one’s spiritual duties are entirely beyond the scope of worldly affairs.
This verse says that loud, heartfelt nāma-kīrtana awakens deep loving attachment, melts the heart, and can manifest as spontaneous laughter, tears, singing, crying out, and dancing—signs of intense devotion.
Krishna is teaching Uddhava the inner characteristics of advanced bhakti—how genuine love for God can overflow beyond social formality—so Uddhava can recognize pure devotion and understand its transformative power.
Focus on sincere, regular chanting and remembrance rather than displaying emotions; let any feeling arise naturally, and measure progress by increased humility, steadiness, and loving attachment to the Lord.