One. It always starts with one.
One simple atom, one simple planet, one simple star. Everything starts with one. Our universe is no different. We all started as one. And then that one turned into two, and three, then four and many more. Different forms of each other, all living in the same ways. All stemming from the same basic design, yet all so different in so many ways.
Our planet started as just a simple rock. Small, cold, barren. No life, nothing to breathe its air or bathe in the light that shone on its surface. A simple rock became a planet, and a planet became our home.
Our many travels to distant star systems have only succeeded in confirming these beliefs.
One is all things and all things are one. One star system, one galaxy, one universe. Even when we traverse to other planes, we know without question that this belief will hold true.