Unconditionality

Understand that there is no distinction between the spiritual and the physical, we make that distinction (and many others) for the sake of understanding; though distinctions actually end up clouding the very issue they are meant to clarify. We separate ourselves from ourselves in dualism, we separate ourselves from the source of life (god) in humanism, and we separate ourselves from the universe in materialism.

We pay attention to the particles while within the space are the real powerful influences. We are all separate when we ignore this space, though unified when we realize that we all share the same space. We are

as small as the collection of particles we call our body, we are as large as the space that connects us to each other and to the cosmos. Our universe is 99.99% space, we only see it as solid because, in our world of space-time, we see those particles in 50,000 places at one time.

Of course the writings of the Tao Te Ching relate this very well:

Become totally empty

Quiet the restlessness of the mind

Only then will you witness everything unfolding from emptiness

See all things flourish and dance in endless variation

And once again merge back into perfect emptiness -

Their true repose

Their true nature

Emerging, flourishing, dissolving back again

This is the eternal process of return