The body of any living organism is not a simple unit. Nor is it just an aggregation of separate elements. The body has an intrinsic organic wholeness. In the matrix of the developing embryo, cartilage and bone are laid down together. While this unity has been separated and analyzed into its parts to further an ongoing understanding, still, the integration, the wholeness, resulting from unitary interplay is the basic fact. Rolf 1977, 179.