"What's this ?"
Jack Skellington -from 'Hallowe'en Town'- opens a portal to 'Christmas Town'...
This video clip is a passage from the film "The Nightmare Before Christmas", by Tim BURTON. Though the story originates in a poem Burton had written in the early 1980's, the film was released in 1993.
_____________________________________________________
portal = a large important entrance
(to) originate in... = come from a particular place / time / situation / etc
/https%3A%2F%2Fassets.over-blog.com%2Ft%2Fcedistic%2Fcamera.png)
/image%2F1562608%2F20170208%2Fob_1e651a_calvinhobbes-xmas-lights-on-roof-1.jpg)