Prabhupada was very direct in his presentation of Krishna consciousness. Many of us, who experienced Srila Prabhupada’s strong preaching in the early days of the movement, experienced that Prabhupada gave a lot of his energy in removing our faith from the material world and simultaneously giving us faith in Krishna. Such is the duty of the spiritual master—to introduce the highest goal of life, which is pure love of God, to his dependents.
LFD Vol 3, Cultivating Krishna Conciousness Pg 161, 3rd paragraph