During the scene Rey lost her life after the battle against Emperor Palpatine (Ian McDiarmid).
In a selfless act Kylo Ren brought her back to life by sacrificing his own life Force. The pair then shared a passionate kiss before he died and disappeared into the Force, just like his mother Leia (Carrie Fisher) before him.
On the relationship Sariah told her followers: “If anybody questions whether or not Reylo were meant to be romantic, you can stop speculating. Rian absolutely saw them as a romance.”
Star Wars: Rey and Kylo Ren kissed in The Rise of Skywalker (Image: DISNEY • LUCASFILM)