As the first rays of light touch the door, the song playing throughout the room explodes into a cascade of chimes, an infinite number of tiny bells sounding, tones descending and fading into silence. The door begins to glow, softly at first but slowly growing in intensity. The light spreads from the door, first causing the symbols around the door frame to illuminate in burnished gold.
Light continues to spread, flowing out from the door like a flood. Symbols on the walls begin to glow and bring color to the patterns there: greens and browns for the earth, trees in a thousand shades of green and yellow and colors you can't even put names to, water mixing blues and greys and white, each moving and changing color to give the "river" the sense of rushing water.
The entire room is now bathed in a spectrum of colors of light, dazzling the eyes.
As you watch the door, the metal simply... fades away, and flowers spring into life around the frame. A dirt path leads the way forward, its destination obscured in a green glow.