Q: How can the sacrifice of Purusha be seen as justification for the social divisions that developed into the Hindu caste system?
When the Gods broke Purusha into parts, they created the Brahman, rajanya (warrior), the vaisya (landowners and merchants) and the sudra (manual laborers). Today, these castes still remain in Hindu system. The gods and the universe came from Purusha, so it is not hard to believe how the idea of the castes derived from this tale. So for such a colossal figure to be split apart into several pieces was a huge ordeal in Hindu religion. Also, the castes can be derived from how Purusha was split up. For instance, from his mouth came the first caste, also the highest which was the Brahman. Then what one might consider the upper middle class, his arms, was the rajanya. Parusha's thighs, the middle class, were the vaisya. And last and least his feet, was the servant class, the sudra.
Q Does the Kama Sutra approach to sex support female equality? Why or why not?
The Kama Sutra dos not show signs of supporting female equality, other than mentioning both parties being pleasured. But basically it seems to be stemmed from a male point of view. Comments such as "Wife!...procreate sons for your husband..." praying to the gods that his wife allow him to enter her body lead one to believe the narrator is quite possibly, man. A massive point that women are not equal to men is under the 'Preludes and conclusions to the game of love'. It basically is a rule book on whom to or not to sleep with for the Hindu man and if you do sleep with a certain woman, what will come of it the next day. For example the Kama Sutra goes into detail with sleeping with a married woman to sleeping with a servant woman not being recommended, but if you do sleep with this kind of woman, what you should know and you can expect to be unsatisfied afterwards if it is not with someone you love or are married to.
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