Sometimes not adding very many instruments to a piece to make it sound good is necessary.
Simple is good. this song is simple. that's all there is to it.
sit back and relax. envision the clouds going over your head as you walk the Sanctuary. a place made of the most elegant marble walls, transparent floors made of a giant slate of diamond, open ceilings, and relaxing waterfalls falling from nowhere into the small pools within various corners of the interior.