In the Hari-bhakti-sudhodaya there is a conversation between Prahlāda Mahārāja and his father, Hiraṇyakaśipu, in which Hiraṇyakaśipu addresses Prahlāda in this way: “My dear son, association is very important. It acts just like a crystal stone, which will reflect anything which is put before it.” Similarly, if we associate with the flowerlike devotees of the Lord, and if our hearts are crystal clear, then certainly the same action will be there. Another example given in this connection is that if a man is potent and if a woman is not diseased, then by their conjugation there will be conception. In the same way, if the recipient of spiritual knowledge and the deliverer of spiritual knowledge are sincere and bona fide, there will be good results.