These are all ways and means of showing the power of love. Water shows its power in various ways, in quenching thirst, causing seed to grow, etc. Coal expresses one of its principles in gas-light, while one of the powers of electricity is shown in the electric light. So, it is necessary to have an instrument, a motive for love's manifestation, an object, a mode of expression. We must find a way of spreading love among the sons of humanity.
Material things are limited, circumscribed, finite.
You cannot adequately express infinite love by limited means. The perfect love needs an unselfish instrument, absolutely freed from fetters of every kind. Frequently members of the same family disagree, and even hate each other. Compatriots also are not free from quarrels amongst themselves. To love our own race may mean hatred of all others, and even people of the same race often dislike each other.