Wellinghall Puzzle

A great hall cut in the side of the hill, and along each wall an aisle of trees. At the far end a shallow bay with an arched roof, and a little stream tinkling down the wall like a fine curtain in front of it. In the bay a table and two vessels, which glow with a golden and a green light. The blending of the two lights is like the summer sun shining through young trees. The trees also glow, every leaf edged with light, green and gold and red.