Answer:
The line a runner strives to reach
A standard dimension for sandwiches and rulers
It makes me warm and secure.
What is something yet nothing, but if you fill it up it will disappear?
A cloud was my mother, the wind is my father, my son is the cool stream, and my daughter is the fruit of the land. A rainbow is my bed, the earth my final resting place, and I'm the torment of man.
Why is the letter B always cool?