The middle wall just encloses the tower, with a large area on the east side where people come to pray and make offerings. The inside of this middle wall contains several rather contemporary morality scenes with admonitions against drugs, etc. The innermost wall is just big enough to surround the base of the tower, and the doors in its four gates are rarely open. The spire has a large teak door on its eastern side, but I haven't found any information about what is inside.