After the gṛhastha-āśrama is another āśrama, known as vānaprastha, which is midway between gṛhastha and sannyāsa. A person in the vānaprastha order is restricted in eating food grains and forbidden to eat fruits that have not ripened on the tree. Nor should he cook food with fire, although he is allowed to eat caru, grains that have been offered in a sacrificial fire. He may also eat fruits and grains that have grown naturally. Living in a thatched cottage, the vānaprastha should endure all kinds of heat and cold. He should not cut his nails or hair, and he should give up cleaning his body and teeth. He should wear tree bark, accept a daṇḍa, and practice life in the forest, taking a vow to live there for twelve years, eight years, four years, two years or at least one year. At last, when because of old age he can no longer perform the activities of a vānaprastha, he should gradually stop everything and in this way give up his body.