Not-separateness is the degree of connectedness an element has with all that is around it. A thing which has this quality feels completely at peace, because it is so deeply interconnected with its world. There is no abruptness, no sharpness, but often an incomplete edge which softens the hard boundary. The element is drawn into its setting, and the element draws its setting into itself.
Not-separateness is a profound connection occurring at many scales between a center and the other centers which surround it, so that they melt into one another and become inseparable. - TkWA