Gandhi's philosophy was not theoretical but one of pragmatism, that is, practicing his principles in real time. Asked to give a message to the people, he would respond, "My life is my message."
...Gandhism designates the ideas and principles Gandhi promoted. Of central importance is nonviolent resistance. A Gandhian can mean either an individual who follows, or a specific philosophy which is attributed to, Gandhism. M.M.Sankhdher argues that Gandhism is not a systematic position in metaphysics or in political philosophy. Rather, it is a political creed, an economic doctrine, a religious outlook, a moral precept, and especially, a humanitarian world view. It is an effort not to systematize wisdom but to transform society and is based on an undying faith in the goodness of human nature. However Gandhi himself did not approve of the notion of "Gandhism". He explained in 1936:
There is no such thing as "Gandhism," and I do not want to leave any sect after me. I do not claim to have originated any new principle or doctrine. I have simply tried in my own way to apply the eternal truths to our daily life and problems...The opinions I have formed and the conclusions I have arrived at are not final. I may change them tomorrow. I have nothing new to teach the world. Truth and non-violence are as old as the hills.
...Stephen Hay argues that Gandhi in London looked into numerous religious and intellectual currents. He especially appreciated how the theosophical movement encouraged a religious eclecticism and an antipathy to atheism. Hay says the vegetarian movement had the greatest impact for it was Gandhi's point of entry into other reformist agendas of the time. The idea of vegetarianism is deeply ingrained in Hindu and Jain traditions in India, especially in his native Gujarat. Gandhi was close to the chairman of the London Vegetarian Society, Dr. Josiah Oldfield, and corresponded with Henry Stephens Salt, a vegetarian campaigner. Gandhi became a strict vegetarian. He wrote the book The Moral Basis of Vegetarianism and wrote for the London Vegetarian Society's publication.
Gandhi used fasting as a political device, often threatening suicide unless demands were met. Gandhi noted in his autobiography that vegetarianism was the beginning of his deep commitment to Brahmacharya; without total control of the palate, his success in Brahmacharya would likely falter. "You wish to know what the marks of a man are who wants to realize Truth which is God," he wrote. "He must reduce himself to zero and have perfect control over all his senses-beginning with the palate or tongue."
....A core Gandhian value that came in for much bantering and ribald music hall humour in Britain was his nakedness—Churchill publicly called him a "half-naked fakir" – and his experiments in "brahmacharya" or the elimination of all desire in the face of temptation. In 1906 Gandhi, although married and a father, vowed to abstain from sexual relations. In the 1940s, in his mid-seventies, he brought his grandniece Manubehn to sleep naked in his bed as part of a spiritual experiment in which Gandhi could test himself as a "brahmachari." Several other young women and girls also sometimes shared his bed as part of his experiments. Gandhi discussed his experiment with friends and relations; most disagreed and the experiment ceased in 1947.