This is a period of formal education. It lasts until the age of 25, during which, the young male leaves home to stay with a guru and attain both spiritual and practical knowledge. During this period, he is called a brahmachari, and is prepared for his future profession, as well as for his family, and social and religious life ahead. Grihastha - The Married Family Man:
This period begins when a man gets married, and undertakes the responsibility for earning a living and supporting his family. At this stage, Hinduism supports the pursuit of wealth (artha) as a necessity, and indulgence in sexual pleasure (kama), under certain defined social and cosmic norms. This ashrama lasts until around the age of 50. According to the Laws of Manu, when a person's skin wrinkles and his hair greys, he should go out into the forest. However, in real life, most Hindus are so much in love with this second ashrama that the Grihastha stage lasts a lifetime! Vanaprastha - The Hermit in Retreat:
This stage of a man begins when his duty as a householder comes to an end: He has become a grandfather, his children are grown up, and have established lives of their own. At this age, he should renounce all physical, material and sexual pleasures, retire from his social and professional life, leave his home, and go to live in a forest hut, spending his time in prayers. He is allowed to take his wife along, but is supposed to maintain little contact with the family. This kind of life is indeed very harsh and cruel for an aged person. No wonder, this third ashrama is now nearly obsolete. Sannyasa - The Wandering Recluse:
At this stage, a man is supposed to be totally devoted to God. He is a sannyasi, he has no home, no other attachment; he has renounced all desires, fears and hopes, duties and responsibilities. He is virtually merged with God, all his worldly ties are broken, and his sole concern becomes attaining moksha, or release from the circle of...