The Celestial Room

The Celestial Room of the temple represents The Celestial Kingdom, the highest of all the glories, also called the glory of the sun.
The Celestial Kingdom is where God, The Eternal Father, Rules and Reigns, so it's elevated higher than the other rooms, has high ceilings, is lighted the brightest, and is the most beautifully designed and decorated.
When patrons enter the Celestial Room it's symbolic of entering the kingdom and presence of God. While in the Celestial Room, people whisper quietly to show reverence to God, and to maintain the spirit of the room. It's the most sacred room in the temple, (except for the holy of holies, which is through the door in the middle).
Patrons spend time in the room praying, meditating, receiving inspiration, and draw closer to Heavenly Father and Jesus. It's a special and sacred experience for members to spend time in the Celestial Room with their families because of what it represents.