Trances can be of God too though.

"I was in the city of Joppa praying, and in a trance I saw a vision. I saw something like a large sheet being let down from heaven by its four corners, and it came down to where I was."---Acts 11:5

"He became hungry and wanted something to eat, and while the meal was being prepared, he fell into a trance"--Acts 10:10

Were not supposed to try or let anyone else try to put us under a trance but if directed by the Holy Spirit than its okay.