Chiseled in Stone

This is from a stone in the Chinese Gardens at the Huntington Library and Gardens in San Marino. They are undergoing a msajor construction project to add to an already amazing Chinese Garden. I understand each stone and each block has been crafted in China, disassembled and then reassembled by the same workers here in the US. I tried briefly to look up this symbol, but I could not find it. I really like the curves and the colors. Hope it is not too bright as it was taken in midday. Canon 60D, f9, 1/2500 sec, iso 400, -1 EV, 100-400 IS at 400 mm, HH, 90% of original frame.