The universal law of harmony requires that you practice of unselfish concern for others. It makes sense, since the energies of others affect your energies and yours theirs. This means accepting others just as you accept yourself. The ideal way is self-forgetfulness.
Harmony is the flow of life. Everything strives for Harmony, for balance. The law of Harmony is superior in hierarchy to the law of nature, meaning it manages more information and processes in the Universe.