: The object is actually a crystal chakra wand . In a "wormhole" of re-gifting, Raj originally gave it to Howard and Bernadette, who gave it to Leonard and Penny, who finally passed it to Sheldon and Amy.

" The Wedding Gift Wormhole " is the of The Big Bang Theory . It originally aired on September 27, 2018. Plot Overview

: Feeling lonely after seeing Stuart’s successful date with Denise, Raj asks his father to find him an arranged marriage . His father agrees, provided Raj stops posting matching-sweater photos with his dog, Cinnamon.

: Leonard and Penny give Sheldon and Amy a gift described as "the perfect gift for the perfect couple". Baffled by its purpose, the Coopers embark on a literal scavenger hunt, mistakenly believing the object is a clue to a larger puzzle.