Answer:
The most fabulous way to locate pots of gold
What is found over your head but under your hat?
I have joy in bringing two together, but darning my existence! My life hangs by a thread, filled with ups, downs and resistance!
Each morning I appear to lie at your feet, all day I follow no matter how fast you run. Yet I nearly perish in the midday sun.
What is not a ball but yet a sphere, and holds all lands and people year after year?
Both old people and owls are said to be possessing this trait