Vedanta also says the same thing. In the olden days, they said that the whole universe is made up of one consciousness. One consciousness manifests itself into many.
It is similar to how you prepare bread, roti, samosa and halwa from the same wheat.
The universe is so diverse, but yet, it is made up of one vibration, one consciousness, and that is what they call the God particle.
It is that one thing from which all these multitudes of creation has come up.