What is the meditation of a bhakti-yogi? It is strict adherence to the guru’s instructions. Srila Prabhupada explains in the fourth canto that “one should not try to see Krsna behind some bush in Vrndavana. He should know that Krsna personally manifests His form through the instructions of the spiritual master.” This is a devotee’s meditation.
Lectures From a Disciple, Vol 1, p. 240
SB 3.28.25, Moscow, 31.03.96