The glands of Bartholin are of great importance to the act of love. These glands discharge a thin colorless mucus in sexual excitation, and this lubricates the vaginal opening and canal during intercourse. The amount of secretion varies greatly with each individual. Sexual frigidity often affects these glands adversely, causing the secretions to be inadequate or nonexistent. However, the amount of secretion will also vary rather dramatically at times in the individual who has no basic sexual blocking, and therefore the glands of Bartholin cannot be taken as a final criterion of sexual adequacy or inadequacy. And now we come to the most important part of a woman’s anatomical sexual equipment: the vagina. This is a passageway of some three to three and a half inches which extends from the vestibule on the outside of the cervix, which is the bottom end of the uterus. The vagina is, of course, the canal which accepts the penis, and it may interest you to know that in Latin the word literally means “a sheath for a sword.” The sexual act in its purest form expresses the essential passivity associated with women and the aggressiveness of the male, the actor and the acted upon. The Romans understood this basic difference at least linguistically. It may have surprised you to learn of the relatively short length of the vagina. The tissue of its walls are extremely elastic, however, and not only can it contain a penis of virtually any thickness or length, but it can stretch enough to allow the newborn infant to pass through it. The penis presses against the cervical end of the uterus, which may be forced upward until the penis gains full entrance. Contact with the soft tissue of the cervix is a source of great pleasure for the male, and the pressure can be an equal pleasure for the woman. The vaginal walls are lined with a soft skin, not unlike mucous membrane, but it does not secrete as mucous tissue will. A secretion is, however, released from the cervix, and this also helps to lubricate the vaginal canal during intercourse. I have said that the vagina is the most important part of a woman’s sexual equipment. This is so because it is within the vagina that the orgasm of the truly mature woman takes place. Upon it and within it she receives the greatest sensual pleasure that it is possible for a woman to experience. And this brings us to the subject of orgasm. I think you will understand it more fully if I describe it in the context of the sexual experience as a whole. The sexual instinct in both men and women is marvelously complex. When it is unencumbered by neurosis it gives color, shape, brightness, charm, vividness, and direction to the entire personality, and the mechanisms by which it operates encompass both body and mind.