When a man does not realise his kinship with the world, he lives in a prison-house whose walls are alien to him. When he meets the eternal spirit in all objects, then is he emancipated, for then he discovers the fullest significance of the world into which he is
born; then he finds himself in perfect truth, and his harmony with the all is established.
Rabindranath Tagore (1915) Sadhana: The Realization of Life. The MacMillian Company, New York, p. 9