All known objects are processes. Consciousness is as much an object as
other processes that re-present a present moment through changing
stuff, everything is constantly changing and opposite things are
identical, so that everything is and is not at the same time. In other
words, Universal Flux and the Identity of Opposites may entail a
denial of the Law of Non-Contradiction, since all things go and
nothing stays, and comparing existents to the flow of a river which
you cannot step twice into. On those stepping into rivers staying the
same other and other waters flow. There is an antithesis between
'same' and 'other,' different waters flow in rivers staying the same,
though the waters are always changing, the rivers stay the same.
Indeed, it must be precisely because the waters are always changing
that there are rivers at all, rather than lakes or ponds. The message
is that rivers can stay the same over time even though, or indeed
because, the waters change. The point, then, is not that everything is
changing, but that the fact that some things change makes possible the
continued existence of other things. Perhaps more generally, the
change in elements or constituents supports the constancy of higher-
level structures.
http://www.utm.edu/research/iep/h/heraclit.htm
