Video portrayal of the smooth topological charge density of an empty vacuum at Minute 27.
In other words, this is what the empty space between the quarks looks like.
Derek Leinweber discretized QCD theory (that is, put it on a lattice) and did some computations of what that looks like. One conclusion of quantum chromodynamics is that empty space is a wildly dynamical medium due to virtual particles.
The universe is a song, singing itself.