A Galaxy is a collection of solar systems.
Each solar system is a physical energetic form.
Each system is physically formed from the sun at its centre.
Like energy unto itself is drawn.
Like solar systems are drawn together to form a galaxy.
Galaxies rotate around a black hole at their centre.
A black hole is the gateway between the realms of matter & the realms of pure energy.
It is a portal between the realms of spirit & the worlds of matter.
It is the heart of the galaxy, the nucleus from which all matter is formed and all matter eventually returns.
It is the energy of the black hole that keeps the matter of the galaxy in motion.
Solar systems of a similar wavelength gravitate in the same galaxy, whilst their magnetic frequencies keep them apart.
Thus separate solar systems travel separately together in the same galaxy.