Question: If I have sincere desire to serve Krsna will the Lord and guru award pure devotional service immediately, or one’s heart should be completely purified before that?

Jayapataka Swami: You start off the question by saying if I have a pure desire to serve Krsna. If you have a pure desire, then it is a very pure devotion. Anyway, you should try to serve Krsna as purely as you can and certainly He will appreciate it.
03-MARCH-2020 SRI MAYAPUR DHAM, INDIA