Kris,
That which is manifest assumes mutual opposites. Short answer: there is no such thing as ‘matter’ without ‘antimatter’. Remember, the words are only symbols, and not the reality. Perhaps another way of explaining is to say that to the extent I describe (apply a symbol) something (matter), I have also described not-something (antimatter) One cannot exist without the other, they are co-dependent.
It seems like an explanation that is too simple, but it is critical to the understanding that no-thing stands alone, that all ‘becoming’ is connected to all other ‘becomings’. This is the underpinnings of yin - yang
Perhaps this helps explain chapter two of Tao Te Ching when speaking of human conduct:
[i]As soon as everyone in the world knows that the beautiful are
beautiful,
There is already ugliness.
As soon as everyone knows the able,
There is ineptness.
Determinancy and indeterminancy give rise to each other,
Difficult and easy complement each other,
Long and short set each other off,
High and low complete each other,
Refined notes and raw sounds harmonize with each other,
And before and after lend sequence to each other -
This is really how it all works.
It is for this reason that sages keep to service that does not entail
coercion.
And dissimenate teachings that go beyond what can be said.
In all that happens,
The sages develop things but do not initiate them,
They act on behalf of things but do not lay any claim to them,
They see things through to fruition but do not take any credit for them.
It is only because they do not take any credit for them that things do not
take their leave.[/i]
All of chapter two is directly related to the understanding that the manifest universe is the continuous interaction of mutually entailing opposites. This is quite different than the traditional western concept of god-created stand alone “things”.