Gravity Maybe?

[foodchain]

When an antiparticle of a particle collide from what I understand you get a high energy release. So what in the first place allowed for this energy to take on a stable form? For instance if the big bang supplied all the energy in the universe, and such took on form and so on, what allowed for the energy to be encapsulated into form, such as being a quark? Not speaking directly on any forces or such after the fact of formation, just more directly on how the energy was able to take a stable form in the first place.