You can call it tathata, suchness. 'Suchness' is a Buddhist way of expressing that there is something in you which always remains in its intrinsic nature, never changing. It always remains in its selfsame essence, eternally so. That is your real nature. That which changes is not you, that is mind. That which does not change in you is buddha-mind. You can call it no-mind, you can call it samadhi, satori. It depends upon you; you can give it whatsoever name you want. You can call it christ-consciousness.