The primary claim of this study is that when we come to understand the true nature of what we are as individuals and as a species, we cannot fail to acknowledge our connections and interdependencies with the rest of the world, and this can, does, and should incline us toward greater care for other people, creatures, and things. The conclusion warns us about some potentially bad forms of oneness and recalls earlier arguments showing how such mistaken conceptions violate established imperatives to present metaphysically, psychologically, and socially plausible views that can serve as the basis for integrated, sustainable, and happy lives in community with others. The new conceptions of oneness this study recommends differ from traditional view in being open-ended ideals; we can find support for such ideals in the world, but we can and must continue to build and innovate upon them.