Answer:
I am used for light yet I am solid. Without me you would feel enclosed. I hate being touched especially with a lot of force. I like to be in buildings.
I am the black child of a white father a wingless bird flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me even though there is no cause for grief and at once on my birth I am dissolved into air.
I sleep by day, I fly by night. I have no feathers to aid my flight. What am I?
What can you catch but not throw?
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.
I will disappear every time you say my name.