When Time Breaks Down
In an atom, that ticking corresponds to interactions between its component particles and fields, in which the internal parts exchange energy, momentum and other properties.
Interactions which hold the atom together.
The rate of these interactions, this ticking, represents the rate at which atom will change from one arrangement, one state, to the next. The rate at which an atom evolves.
In a fast moving object, the interactions driving this evolution appear to happen more slowly. Time passes more slowly.
Move fast enough and time barely passes at all.
So, the confinement of light speed particles gives matter mass.
In fact, this confinement, this bundling of energetic moving parts, is what makes it matter.
But now it looks like this same binding of light speed particles can also give matter time.
Atoms feel time in their evolution similar to our own perception of the changing patterns in our brain.