rādhikā-ādi—Śrīmatī Rādhārāṇī and the other gopīs; lañā—taking along; kaila—did; rāsa-ādi—beginning with the rāsa dance; vilāsa—pastimes; vāñchā bhari'-fulfilling desires; āsvādila—He tasted; rasera—of mellow; niryāsa—the essence.