Japanese garden at Cal State Long Beach. Another view of the turtle island with the Moon bridge in the back side. The bridge is patterned after the more-highly arched drum bridges and crosses the stream that cascades down from the waterfall. When reflected in the water, it becomes a full circle representing the completeness of the garden. The eight bud-shaped finials atop the bridge posts represent the eight spiritual principles that enlighten the path to Nirvana.