The timing of the Onbashira Festival, which falls during the Zodiac years of the Tiger and the Monkey, and the rebuilding of the Upper Shrine's "hōden" or treasure halls (see below) at noon – the hour of the Horse – are seen as corresponding with the concept of the Three Unities (三合, Chinese: "Sānhé", Japanese: "Sangō"), where four of the five elements are assigned three branch signs each, representing 'birth' (長生), 'peak' (帝旺), and 'burial' (墓). The zodiac signs of the Tiger and the Horse are both associated with the 'birth' and 'peak' aspects of fire.