When a person is all the time occupied doing good to others, there is a constant joy arising; and that joy creates a heavenly atmosphere, creating within him that heaven which is his inner life. This world is so full of thorns, so full of troubles, pains and sorrows, and in this same world he lives; but by the very fact of his trying to remove the thorns from the path of another, although they prick his own hands, he rises and this gives him that inner joy which is his spiritual realization.