Here the Lord Kṛṣṇa and Rādhārāṇī, that is the same Kṛṣṇa and Rādhārāṇī who are in the Goloka Vṛndāvana. It is simply expansion to give us facility to accept our service. I think I have given many times this example: Just like in front of your door there is a mailbox. That mailbox, although it appears to be small box, but it is Post Office. It is not different from Post Office. The practical example is that you place your letters within the box and it goes thousands and thousand miles away. Therefore it is Post Office. Don't think that it is different from the Post Office.
Similarly, ānanda-cinmaya-rasa expansion—this Deity. When you are worshiping this Deity, exactly just like you are posting your letters in the mailbox, it is accepted by Kṛṣṇa. Don't think that you are worshiping some doll. No. As the Post Office kindly places a box before your house to facilitate your business, similarly Kṛṣṇa, goloka eva nivasati, He is living in the Goloka Vṛndāvana, but He expands Himself as Deity to accept your humble service. Never consider that the Deity is made of stone or brass or wood or like that. Brass, wood, stone—everything is Kṛṣṇa, because everything is Kṛṣṇa's energy.