With the release of Star Wars: The Force Awakens breaking box-office records around the world, it is no wonder expectation for Episode VIII is so huge.
Second, the idea of Force Trees has already been introduced to the new Star Wars canon via the Marvel Comics’ limited series Shattered Empires.
Third, there were leaks claiming Kylo Renn attacks Luke’s hideaway at some stage in the film in a nighttime mission.
The tree seems to be affecting the boy strongly, exaserbating his anger when the pair argue.