evam-vrataḥ — when one thus engages in a vow to chant and dance; sva — own; priya — very dear; nāma — the holy name; kīrtyā — by chanting; jāta — in this way develops; anurāgaḥ — attachment; druta-cittaḥ — very eagerly; uccaiḥ — loudly; hasati — laughs; atho — also; roditi — cries; rauti — becomes agitated; gāyati — chants; unmāda-vat — like a madman; nṛtyati — dances; loka-bāhyaḥ — not caring for outsiders.