"A person may have a bona fide spiritual master and may be attached to a spiritual organization, but still, if he is not intelligent enough to make progress, then Krishna from within gives him instructions so that he may ultimately come to Him without difficulty. The qualification is that a person always engage himself in Krishna consciousness and with love and devotion render all kinds of services. He should perform some sort of work for Krishna, and that work should be with love. If a devotee is intelligent enough, he will make progress on the path of self-realization. If one is sincere and devoted to the activities of devotional service, the Lord gives him a chance to make progress and ultimately attain to Him."
(Bhagavad-gita As It Is, 10.10, Purport)
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