Asceticism, in one of its most intense forms, can be found in one of the oldest religions known as Jainism. Jainism encourages fasting, yoga practices, meditation in difficult postures, and other austerities. According to Jains, one's highest goal should be Moksha (i.e., liberation from samsara, the cycle of birth and rebirth). For this, a soul has to be without attachment or self indulgence. This can be achieved only by the monks and nuns who take five great vows: of non-violence, of truth, of non-stealing, of non-possession and of celibacy.