There is nothing mystical about getting Gaura Nitai deities for worshiping. The Lord is all powerful and omnipresent, he knows the heart of the devotee and reciprocates with the devotee accordingly. So now the Lord has come to your home and agreed to be worshiped by you, therefore everything should be clean and neat. Nice prasadam should be offered regularly and distributed to guests. Kirtana may be performed morning and evening and some discussion from Bhagavad-gita as it is, or other books from our publications.
Letter to Sacimata Prabhu, 15 October, 1976