Going Up?

I fly higher and higher
Propelled by soul afire.

Foot by foot I rise for
Each inch I gain reveals a mile more.

I climb to see eternity
Through rarified air, though solitary.

How high must I go for unlimited view?
I haven't seen Angels, I haven't seen Truth.

On ever-thinner ether come words of the wisened:
No matter how high you can't defeat the horizon.