This is the principle of Universal Brotherhood of man with one another, with all life down to the little ants.
Swami VivekanandaThere cannot be two almighty beings in this world. [Imagine having] two or three Gods; one will create the world, another says, "I will destroy the world." It [can] never happen. There must be one God. The soul attains to perfection; [it becomes] almost omnipotent [and] omniscient. This is the worshipper. Who is the worshipped? He, the Lord God Himself, the Omnipresent, the Omniscient, and so on. And above all, He is Love. How is [the soul] to attain this perfection? By worship.
Swami VivekanandaThis is the first lesson to learn: be determined not to curse anything outside, not to lay the blame upon anyone outside, but stand up, lay the blame on yourself. You will find that is always true. Get hold of yourself.
Swami Vivekananda