All I can give you is my concept of the center. You can rely on constant change...therefore it may be the center. My center is that quiet place of myself that is always quiet. Your center may be utterly different from mine, which is different from what a homeless person or a bird or a butterfly or a moose or state senator finds as the center.
It's all about what each individual feels to be central to their concept of reality. Hence "Theories of Reality". In regard to the center holding....I guess that also depends on what your perception of the center is....