Everything you see with the physical perception of your sight is being held together or created with an energy that you are not separate from.
That includes the sidewalk and park and building you see. It includes the people you see and all activity and movement. It includes your body and relationships. And of course all of your other perceptions and movements.
And how much energy do you think you are expending upholding the perspective that you are separate from everything else?
The current perspective of humanity is of a contracted and very limited perspective of existence. It does afford us some interesting experiences but it is also one we will grow out of when we are done experiencing it and choose something more.
Explore the relationship between emptiness, form and perception if it interests you. It leads to so much.