It is spiritual magnetism which is worth preserving. It is spirituality which is the medium which transmits good heredity from parent to progeny. The mind is the storehouse and battery of all human magnetism. The vibrations of the mind pervade every atom of the body and the mind's vibrations are generated by its principal and most powerful thoughts and sentiments. These vibrations are the essence of these thoughts and sentiments, and magnetism is that subtle essence impregnated with the potencies of the mind mixed with the subtle forces of the physical body. Marrying, cooking and eating within the caste helps to conserve in the individual members thereof the spiritual and mental magnetism, generated by the performances of the religious duties and ceremonies and spiritual incantations which form the daily routine of household life enjoined by the Scriptures. Thus wisdom, talent, traits, instincts are all ingrained in and transmitted through the blood from generation to generation of each caste. The caste is like a university, each home a school, and the instincts and talents, brought into being with the birth of each member, are the implanted principles of the knowledge of each profession of which it is the caste. A carpenter's caste is a guild for carpentry, a carpenter's home is a technical school for carpentry where the natural talent and love for the art are partly imbibed by the instincts of heredity and partly by observation which is the best system of training. With these tendencies of material arts are born in the blood of the child the germs of the moral and spiritual culture of the parents. These germs shoot forth into healthy growth under the fostering care of the child's guardians, aided by the religious, social and domestic duties the growing child has to perform daily. The carpenter is as much a useful member of the four-caste society as the Brāhman. The householder Brāhman can no more do without a carpenter than a carpenter can do without a Brāhman. But the value of the Brāhman's help to the carpenter being more important to the development of his soul, which is the true aim and goal of earthly life, the obligations of the other castes to the Brāhman are greater and deeper than those of the Brāhman to the Sudra. The question may now be asked, has that carpenter no chance of becoming the equal of the Brāhman through spiritual culture? Yes and no. Yes, because Brāhmanhood is nobody's monopoly. Brāhmanhood is but a state of the human mind—the ensouled state of the human mind, and anybody who develops this state of mind, even though he be encased within a Pariah's flesh, lays legitimate claim to Brahmanhood. Only he must make that ensouled mental state perfect, only he must enter the fold of Brāhmanhood through the door of Nature, through the ingress of Rebirth. The maturity of a material or mental condition is best known to Nature. A mass of animal flesh, lying on the surface of Mother Earth, undergoes