Answer:
Though desert men once called me God today men call me mad. For I wag my tail when I am angry. And growl when I am glad.
Lighter than what I am made of, more of me is hidden than is seen. What am I?
I begin and have no end. Eventually, I will be the ending of all that has begun. What am I?
I go up and never come down no matter how hard you wish. As I get higher more wrinkles crawl onto your face.
Born of sorrow, grow with age, you need a lot of me to be a sage. What am I?
A little house full of meat, no door to go in and eat.