You point a closed door, window, gate, chest, or other entryway, and it becomes locked for the duration, and it is impassable until it is broken or the spell is dispelled. Casting knock on the object dispels hold portal.

While affected by this spell, the object is more difficult to break or force open; the DC to break it or pick any locks on it increases by 10.

At Higher Levels: duration 1 hour at when cast at level 2, 24 hours when cast at level 3.