Asceticism (/əˈsɛtɪsɪzəm/; from the Greek: ἄσκησις, romanized: áskesis, lit. 'exercise', 'training') is a lifestyle characterized by abstinence from sensual pleasures, often for the purpose of pursuing spiritual goals.Ascetics may withdraw from the world for their practices or continue to be part of their society, but typically adopt a frugal lifestyle, characterised by the renunciation of material possessions and physical pleasures, and also spend time fasting while concentrating on the practice of religion or reflection upon spiritual matters. Various individuals have also attempted an ascetic lifestyle to free themselves from addictions, some of them particular to modern life, such as alcohol, tobacco, drugs, entertainment, sex, food, etc
Asceticism has been historically observed in many religious traditions, including Buddhism, Jainism, Hinduism, Islam, Christianity, Judaism, Stoicism and Pythagoreanism and contemporary practices continue amongst some religious followers.
The practitioners of this philosophy abandon sensual pleasures and lead an abstinent lifestyle, in the pursuit of redemption,salvation or spirituality.Many ascetics believe the action of purifying the body helps to purify the soul, and thus obtain a greater connection with the Divine or find inner peace. This may take the form of rituals, the renunciation of pleasure, or self-mortification. However, ascetics maintain that self-imposed constraints bring them greater freedom in various areas of their lives, such as increased clarity of thought and the ability to resist potentially destructive temptations. Asceticism is seen in the ancient theologies as a journey towards spiritual transformation, where the simple is sufficient, the bliss is within, the frugal is plenty. Inversely, several ancient religious traditions, such as Zoroastrianism, Ancient Egyptian religion, and the Dionysian Mysteries, as well as more modern Left Hand traditions, openly reject ascetic practices and either focus on various types of hedonism or on the importance of family life, both rejecting celibacy.
The adjective "ascetic" derives from the ancient Greek term askēsis, which means "training" or "exercise". The original usage did not refer to self-denial, but to the physical training required for athletic events. Its usage later extended to rigorous practices used in many major religious traditions, in varying degrees, to attain redemption and higher spirituality.
Dom Cuthbert Butler classified asceticism into natural and unnatural forms:
"Natural asceticism" involves a lifestyle which reduces material aspects of life to the utmost simplicity and to a minimum. This may include minimal, simple clothing, sleeping on a floor or in caves, and eating a simple, minimal amount of food.Natural asceticism, state Wimbush and Valantasis, does not include maiming the body or harsher austerities that make the body suffer.
"Unnatural asceticism", in contrast, covers practices that go further, and involves body mortification, punishing one's own flesh, and habitual self-infliction of pain, such as by sleeping on a bed of nails.
Self-discipline and abstinence in some form and degree are parts of religious practice within many religious and spiritual traditions. Ascetic lifestyle is associated particularly with monks, nuns, fakirs in Abrahamic religions, and bhikkhus, munis, sannyasis, Vairagis, Goswamis, yogis in Indian religions.