How can I get an orb?

Excuse me, I was wondering if you could possibly enlighten me on a particular matter. I've heard much about the enigmatic concept of an "orb" and I'm intrigued to know how one might acquire such an item. Could you perhaps provide some insight into the various avenues or methods that one could explore in their quest to obtain an orb? I understand that the nature of orbs may vary greatly, so any general guidance or starting points would be immensely appreciated. Thank you in advance for your time and assistance.