As Krishna's form, qualities, pastimes, etc. are all on the absolute platform, material senses cannot therefore appreciate them. When a conditioned soul is awakened to Krishna consciousness and renders service by using his tongue to chant the Lord's Holy name and taste the remnants of the Lord's food, the tongue is purified and one gradually comes to understand who Krishna really is.
The sankirtana of Krishna's names is praised as the best and most powerful means to attain the treasure of Krishna prema [pure love for Krishna]. It is like a potent mantra that can attract precious objects from a distance.
One, who worships the Supreme Lord and His holy name with undivided faith, knowing them to be identical, is considered an elevated, first class devotee, even if he does not understand the intricacies of his own spiritual identity.
One should take a fasting vow for the month of Karttika without any laziness on the Ekadasi which falls in the light part of the month of Asvina (September-October).