Kyn is a Githyanki, and when he was younger he worked as the navigator of a Githyanki vessel. He has now retired from the life of raiding across the planes, and wants to settle down. He's also incredibly bored, and has a soft spot for horses. You don't really see them when you're floating through the Astral Sea.
Well, you do see them sometimes. He saw one once, and he stole it! He doesn't have it anymore though, probably lost it somewhere in the space between spaces.
He arrived unexpectedly in Avrahk Mbar'ost and immediately applied for a job they didn't have open. He got it, too! He may also have a substance abuse problem, but he's not really willing to unpack that right now, thanks.