Answer:
What word has kst in the middle, in the beginning, and at the end?
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.
Long and slinky like a trout, never sings till it's guts come out.
I can be short and sometimes hot. When displayed, I rarely impress.
I am the outstretched fingers that seize and hold the wind. Wisdom flows from me in other hands. Upon me are sweet dreams, my merest touch brings laughter
Both old people and owls are said to be possessing this trait