Krsnadasa Kaviraja Gosvami teaches us first to offer respect to the Panca-tattva-Sri Krsna Caitanya Mahaprabhu, Nityananda Prabhu, Advaita Prabhu, Gadadhara Prabhu and Srivasa and other devotees. We must strictly follow the principle of offering our respects to the Panca-tattva, as summarized in the mantra sri-krsna-caitanya prabhu-nityananda sri-advaita gadadhara srivasadi-gaura-bhakta-vrnda. At the beginning of every function in preaching, especially before chanting the Hare Krsna maha-mantra-Hare Krsna, Hare Krsna, Krsna Krsna, Hare Hare Hare Rama, Hare Rama, Rama Rama, Hare Hare-we must chant the Panca-tattva's names and offer our respects to them.