sei - that; rādhāra - of Śrīmatī Rādhārāṇī; bhāva - the emotion; lañā - taking; caitanya - of Lord Caitanya; avatāra - the incarnation; yuga-dharma - the religion of the age; nāma-prema - the holy name and love of Godhead; kaila - did; paracāra - preaching.

Lord Caitanya appeared with the sentiment of Rādhā. He preached the dharma of this age — the chanting of the holy name and pure love of God.