Holy of Holies
The only temple to have a room designated as the Holy of Holies is the Salt Lake Temple. Boyd K. Packer said that “hidden away in the central part of the temple is the Holy of Holies, where the President of the Church may retire when burdened down with heavy decisions to seek an interview with Him whose Church it is. The prophet holds the keys, the spiritual keys and the very literal key to this one door in that sacred edifice.”