We tend to think of matter as something that fills the space and moves through it with time.
The reality might be a lot different. The theory of geometrodynamics describes the particles not as
something separate from space-time but as particular distortions of space-time itself.
Then, everything is just space-time, a part of it getting curled up in a specific way,
thus becoming a particle, and interacting with others formed in a similar way.
The metaphysical concept of oneness and this scientific theory are amazingly close.