The materialist cannot understand brotherhood for the reason that the materialist can say another brother is as good as me, and therefore my happiness is in sharing all my good with another. But the spiritual person says that other person is me, his happiness is mine, and therefore the highest ideal of brotherhood which spiritual realization can teach, materialism cannot teach. Therefore this activity, which is now going on to bring about a world-brotherhood is not being successful, because the life of brotherhood which is its very breath is the realization of the same God in oneself as well as in the others. The work of the spiritual man is to forget his false self and so to realize the true self which is God, and this true self not only in him, but in his neighbor also.