With great pleasure I have noted your unbounded enthusiasm to carry out this great mission of spreading the light of love of Godhead in this hellish material world. That is the only requirement for successfully completing the perfection of the living condition, that you should always be enthusiastic to perform services unto the Lotus Feet of the Lord despite all obstacles, and then you can be assured that all of the other qualities or necessities for pure devotional service will be met, such as patience, determination, etc. and then without doubt you shall be delivered to the realm of unlimited bliss, freed from all anxieties.
Letter to Hamsaduta, 20 January, 1972