Please accept my blessings. I am very much thankful to you for your letter dated June 12, 1968. The science of Krishna Consciousness is transcendental science which is never understood by materialistic persons. Therefore, the Vedas order us that one must approach a spiritual master to understand that transcendental science. And the qualification of a spiritual master is that he has to have received the knowledge similarly from a bonafide spiritual master, and the result is that a spiritual master is completely convinced of the existence of the Supreme Personality of Godhead, and he is fixed up in his service. That is the qualification of the spiritual master. In other words, this science is appreciated by service attitude only. It is never understood by any challenging spirit. One who is submissive and ready to give aural reception of the transcendental message, to him only the transcendence becomes revealed. So the more you become in service attitude for Krishna, Krishna will reveal Himself to you. Krishna is within you and He is awaiting your surrender and service, and as soon as He sees that you are seriously in serving mood, you will understand everything about Krishna---His qualities, His form, His pastimes, His entourage, and His abode. I am very glad to know that you are gradually stepping upwards by your service attitude and I would request you to prolong this attitude eternally, and Krishna will reveal Himself unto you continually. In other words, Krishna is unlimited, but the more we advance in service attitude, we appreciate Him in newer and newer features. There is a verse spoken by Yamuna Acharya. He says, since I have begun to realize the newer and newer features of Krishna, I have forgotten more and more about material enjoyment. And the summit of material enjoyment is sex. And Yamuna Acharya says that whenever I think of sex, I spit on it. This is the state of Krishna Consciousness. The more you forget about nonsense material enjoyment, you must know you are advancing in Krishna Consciousness. You haven't got to ask anybody how you are making progress, you will realize yourself by this test. Just like a person taking lunch, he will feel satisfied of hunger and strength, himself. Similarly, the more you serve Krishna, you will forget material hankerings and get spiritual strength. This is the test.
I am glad to know you are feeling like that, and keeping chanting Hare Krishna and the answer is already received by you. Thank you very much.
Regarding your question, how Krishna can become a male: (your question,". . . I read from Srimad Bhagavatam, chap. 11, text 7, 'Oh, Creator of the Universe, You are our mother, well wisher, Lord, father, the spiritual master and worshipable deity.' I was asked, 'How can Krishna be mother if He is the Supreme Male?' ") You have to forget always material concepts of existence for Krishna. Krishna is totally different from anything of material concept. In the material idea, we think that how a male can be a female, or how a female can become a male. This is material. But you know the picture that Krishna as Garbhodakasayi Visnu is lying on the sea, and a lotus stem is growing out of His abdomen navel, and Brahma is born there. Visnu's wife, Laksmi, was present there. She was just massaging the Lord's leg, and the Lord avoided her and produced a child. Here in the material world, without the assistance of the wife, nobody can produce a child. But there is the tangible example, that Visnu, without any sex life with wife He produced a child. In the material sense, we cannot conceive how a child can take birth without being born through the abdomen of one woman. Therefore, Krishna being both father and mother, He can be addressed also as mother. That is His all-powerful strength. He is full in Himself. He does not require anyone's help, therefore, He is both father and mother. I think this will clear your idea.