At the heart of the Seiōden (Hall of the Star King / 星王殿) resides the shrine's go-shintai (sacred body of the deity / 御神体): an ancient wooden statue of Hokushin Myōken Sonjō-ō (the Venerable Star King Myōken of the North Star / 北辰妙見尊星王), dating from the Edo period (1603–1868). Through the sacred rite of kanjō (ceremony of invitation and transfer of a divine presence into an object / 勧請), the statue serves as the vessel through which the divine presence of Myōken is enshrined within the Hokushin-Jinja (Shrine of the North Star / 北辰神社).
The wooden statue depicts Myōken in his traditional form as a deity of war, holding a raised sword above his head. Within the symbolism of Myōken worship, the sword represents vigilance, righteous strength, and the divine authority to overcome and strike down forces that threaten cosmic order and harmony. Furthermore, his stern expression and upright posture embody the virtues for which he has long been revered: unwavering determination, protection, and guidance amidst life's ever-changing circumstances.
Carved from a single solid block of wood, the statue bears the traces of centuries of veneration and preservation. More than merely a work of religious art, it serves as the embodiment of Myōken’s presence within Hokushin-Jinja, thus forming the focal point of all worship taking place at the shrine.