In Buddhism, sloth and torpor are known as thina-middha, one of the five nívarana, or hindrances. These are the qualities that inhibit humans' ability to see the truth.
People who are unfamiliar with Buddhism might mistake meditation as a form of sloth, since it appears to be an idle activity. Instead, Buddhists believe meditation actually overcomes sloth and torpor. The concentration necessary for meditation is the opposite of sloth.
The Dhammapada uses the example of a lazy animal to warn against sloth. "When torpid & over-fed, a sleepy-head lolling about like a stout hog, fattened on fodder: a dullard enters the womb over & over again (23:325)." Thus, a slothful life results in rebirth.
Sloth and idleness are forbidden in Christianity. "Never flag in zeal, be aglow with the Spirit, serve the Lord," says Romans 12:11. "So that you may not be sluggish, but imitators of those who through faith and patience inherit the promises," according to Hebrews 6:12.
Catholicism condemns spiritual sloth (acedia) as not wanting to work or exert oneself for spiritual goods. It is considered a sin because slothful people refuse to expend the energy necessary for leading a virtuous life. St. Thomas Aquinas defined sloth as "sluggishness of the mind which neglects to begin good."
Orthodox Christians similarly view sloth as a spiritual idleness. This story from the Desert Fathers explains this view: "A beginning monk, who went to a certain elder to confess, posed, among others, this question: 'Why, Father, do I fall so often into sloth?'
"'You lack the faith which makes you see God everywhere; for this reason you can be careless and lazy about your salva-tion,' the discerning elder wisely explained."
The Church of Jesus Christ of Latter-day Saints also condemns sloth. The Mormon Doctrine & Covenant states, " Set in order your houses; keep slothfulness and uncleanness far from you (90:18)."
Hindu philosophy urges Hindus to put effort into their lives. Human endeavor is seen as the opposite of sloth. Sloth is considered one of the five vighnas, troubles or obstacles. The Yogatattva Upanishad, one of the minor Upanishads, lists sloth among other obstacles, including grief, anger, greed, boastfulness, and bad company. Unless these obstacles are overcome, the text warns, a person may lead a life of despair.
The Maitri Upanishad, a later text than the classical Upanishads, explains that one cannot reach the ultimate realization by leading a life of sloth. "When a man, having freed his mind from sloth, distraction, and vacillation, becomes as it were delivered from his mind, that is the highest point."