What is this? I think now that this has to do with change (transition), and the differing levels of it. See all things as stated above, vibrating infinite levels of differing densities. Now think about the above paragraph concerning balance. Absolute balance cannot exist, imbalances must occur to balance the larger global balance at each level. In the transition from balanced state to imbalanced state, there are parts of existence that are being either pulled apart, or pushed together. This causes eddies or spirals in the "ebb and flow" (if you will). The closer to the "center" of the spiral, the denser, right? Why? Because the vibrations closer to the center are more and more "locked" (temporarily) into a path, the path of the global spiral (which is, of course, part of yet another... etc.). What does "locked into a path" mean? It means a certain level of departure from total chaotic freedom. The more "locked into a path" the vibrations are, the more organized they are; the more structured. OK, here's my point about memory; memory is that which does not change amongst that which does change, in varying degrees.
Matter is memory. Rocks are super-organized memory (and even more so for matter more dense), fluids are semi-organized memory, gasses are a little bit organized, plasmas are not-so organized, light... but yet these are all intermingled, aren't they? A rock is a rock... but it has air in it, maybe even water... or oil. Water is water, but it has sand in it, and many other things. Everything is mixed to certain degree; no one thing is totally separate. It's all about perspective.