Four stages of life:
1.Brahmacharya: Early stage of life which is spent in learning arts of life and spirituality.
2.Grihastha: Householder life, where earning for livelihood, taking care of children and parents are of primary importance.
3.Vanaprastha: Retirement stage, where transfer of responsibilities and duties to younger generation is advised
4.Sanyasa: renunciation stage, in this stage one renounces all worldly attachments and moves to a quiet place to practice spirituality very seriously until death.