Caitanya Caritamrta—Madhyalila-15.108—- For conditioned souls to do devotional service, deity worship is necessary.
938) Whether I know with blunt senses I can’t understand Krsna! Taught by Srila Prabhupada!
———– atah sri-krsna-nämädi na bhaved grähyam indriyaih
sevonmukhe hi jihvädau svayam eva sphuraty adah [Cc. Madhya 17.136]
“With the material senses one cannot understand the transcendental holy name of the Lord or His form, activities and pastimes. But when one actually engages in devotional service, utilizing the tongue, the Lord is revealed.” As it is said in the Caitanya-caritämrta (Madhya 17.134):
ataeva krsnera ‘näma’, ‘deha’, ‘viläsa’,
präkrtendriya-grähya nahe, haya sva-prakäsa
“The holy name of Krsna, His body and His pastimes cannot be understood by the blunt material senses. They are manifested independently.” ———————