The physical and the spiritual are not separate entities. They are two faces of each and every thing that exists.

We call the perception of our senses “physical.”

But our mind’s eye is able to grasp the same phenomena and see much deeper.

And we call that “spiritual.”

Whatever exists spiritually, must have a physical manifestation. And if something occurs physically, it occurs also spiritually.

If you are happy, for example, hormones are released. Happiness is spiritual. The release of hormones is its physical manifestation.

The same with the universe around you. Everything you see is a manifestation of something spiritual.

In truth, everything that exists is spiritual.

Yet further: Everything is divine.

Igrot Kodesh, volume 13, letter 4501.