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.

We have to follow His instructions, but we may not imitate Him

The Srimad-Bhagavatam affirms:

naitat samacarej jatu

manasapi hy anisvarah

vinasyaty acaran maudhyad

yatha 'rudro 'bdhi-jam visam

isvaranam vacah satyam

tathaivacaritam kvacit

tesam yat sva-vaco-yuktam

buddhimams tat samacaret

"One should simply follow the instructions of the Lord and His empowered servants. Their instructions are all good for us, and any intelligent person will perform them as instructed. However, one should guard against trying to imitate their actions. One should not try to drink the ocean of poison in imitation of Lord Siva." (Bhag. 10.33.30)

Chapter 3 - TEXT 24
If I should cease to work, then all these worlds would be put to ruination. I would also be the cause of creating unwanted population, and I would thereby destroy the peace of all sentient beings.

Varna-sankara is unwanted population which disturbs the peace of the general society. In order to check this social disturbance, there are prescribed rules and regulations by which the population can automatically become peaceful and organized for spiritual progress in life. When Lord Krsna descends, naturally He deals with such rules and regulations in order to maintain the prestige and necessity of such important performances. The Lord is the father of all living entities, and if the living entities are misguided, indirectly the responsibility goes to the Lord. Therefore, whenever there is general disregard of regulative principles, the Lord Himself descends and corrects the society. We should, however, note carefully that although we have to follow in the footsteps of the Lord, we still have to remember that we cannot imitate Him. Following and imitating are not on the same level. We cannot imitate the Lord by lifting Govardhana Hill, as the Lord did in His childhood. It is impossible for any human being. We have to follow His instructions, but we may not imitate Him at any time.

We should always consider the position of the isvaras, or those who can actually control the movements of the sun and moon, as superior. Without such power, one cannot imitate the isvaras, who are superpowerful. Lord Siva drank poison to the extent of swallowing an ocean, but if any common man tries to drink even a fragment of such poison, he will be killed. There are many pseudo-devotees of Lord Siva who want to indulge in smoking ganja (marijuana) and similar intoxicating drugs, forgetting that by so imitating the acts of Lord Siva they are calling death very near. Similarly, there are some pseudo-devotees of Lord Krsna who prefer to imitate the Lord in His rasa-lila, or dance of love, forgetting their inability to lift Govardhana Hill. It is best, therefore, that one not try to imitate the powerful, but simply follow their instructions; nor should one try to occupy their posts without qualification. There are so many "incarnations" of God without the power of the Supreme Godhead.