In the beginning we may find chanting to be very bitter

A patient suffering from jaundice is advised to take sugarcane juice daily by the doctor. Due to the disease of jaundice the patient finds the sugarcane juice very bitter and feels like giving up. However having faith in the doctor that the sugarcane juice is hastening his recovery he patiently keeps on having it daily though in the beginning he practically does not realize that the sugarcane juice is hastening his recovery. As he continues to have the juice and his disease vanishes he starts relishing the taste of the sugarcane juice. Thus he realizes that the sugarcane juice is extremely sweet but he was not able to relish it before because of his disease.

Similarly we should have faith in the words of our guru and acharyas and continue to chant the Holy Names of Nityananda, Gauranga and the Hare Krishna Mahamantra with patience. The greatest disease is our desire for material enjoyment and the greatest medicine is chanting of Nityananda, Gauranga and the Hare Krishna Mahamantra daily. In the beginning we may find chanting to be very bitter but having faith in the words of our acharyas and guru we should continue chanting with patience knowing that the medicinal effect is taking place though in the beginning we don't realize it practically. As the disease of desire for material enjoyment vanishes we start relishing the Holy Names and with a higher taste of the Holy Names the lower taste of sense gratification is lost. The Holy Names are always sweet but it is the disease that is not allowing us to relish the Holy Names in the beginning which is realized later on as the disease is vanished and one relishes the Holy Names.