vraje - in Vṛndāvana; gopa-bhāva - emotion of a cowherd boy; rāmera - of Balarāma; pure - in Dvārakā; kṣatriya-bhāvana - the emotion of a kṣatriya; varṇa-veśa-bheda - by differences of dress and color; tāte - therefore; vilāsa - pastime expansion; tāṅra nāma - His name.

“Balarāma, who has the same original form as Kṛṣṇa, is Himself a cowherd boy in Vṛndāvana, and He also considers Himself a member of the kṣatriya race in Dvārakā. Thus His color and dress are different, and He is called a pastime form of Kṛṣṇa.