Gandhi grew up worshiping the Hindu god Vishnu and following Jainism, a morally rigorous ancient Indian religion that espoused non-violence, fasting, meditation and vegetarianism.

During Gandhi's first stay in London, from 1888 to 1891, he became more committed to a meatless diet, joining the executive committee of the London Vegetarian Society, and started to read a variety of sacred texts to learn more about world religions.

Living in South Africa, Gandhi continued to study world religions. "The religious spirit within me became a living force," he wrote of his time there. He immersed himself in sacred Hindu spiritual texts and adopted a life of simplicity, austerity, fasting and celibacy that was free of material goods.