The strong hand of Maya is insurmountable as it is stated in the Bhagavad-gita. But if one sticks to Krishna Consciousness with firmness, then he can easily surmount. My instructions I have already given to you, how to chant the beads, and how to protect yourself from the offenses. I shall advise you again to chant always, increasing the counting, namely, 16 rounds is generally prescribed, but for the time being you can stop all other activities and increase the chanting to 64 rounds.
Letter to Bhaktijana, February 12, 1968