https://www.google.com/amp/s/movieweb.c ... n-message/
Apparently there are hints in TFA (force sounds in early scenes?) and obviously with him using a saber.Now, J.J. Abrams has revealed what exactly was on Finn's mind in The Rise of Skywalker. The director was on hand at an Academy screening of the sequel where he took some questions at the end. However, Abrams' comments regarding Finn were made after the event when a Star Wars fan asked what Finn's secret message was, as there are quite a few unanswered The Rise of Skywalker questions. As it turns out, he wanted to tell Rey that he was Force sensitive, according to Abrams. Though it was never explained, most of the audience was able to pick up on that aspect of Finn's message.
In TROS when Rey dies on Exegol after defeating Emperor Palpatine, Finn is on the Falcon senses it. He also locates which Star Destroyer is leading the fleet based on a "feeling".
