All external and internal objects are changing:

world, body, senses and mind. All changing objects appear and disappear in unchanging Awareness. When the understanding of essential nature as unchanging Awareness arises, identification with changing objects ceases. Through meditative inquiry all objects are realized to be expressions of, and therefore not separate from, unchanging Awareness. Constant abiding in this realization of the truth of Oneness reveals that everything is only an expression of unchanging Awareness...