The antimatter, in physics, is the matter consisting of antiparticles, corresponding in mass to the particles of ordinary matter, though having opposite sign quantum numbers. When particle and antiparticle come into contact they annihilate each other.
But if the urge for togetherness prevails, it leaves room for many imaginaries. It is suspected that the Big Bang gave rise to this first great possibility of singularities.
Opposites who found a compromise in order to exist.