It should be noted that [gohonzons] are only considered to be the focus of devotion after they have received an “eye-opening” ceremony. … The object is acknowledged from that moment on as the living symbol of the focus of devotion; no longer is it simply an artistic representation. In other words, due to the practice of the Buddha’s teachings on its behalf by one who understands the essence of the Lotus Sutra, the statue or mandala is said to have “opened its eyes” and become a Buddha. From that time on, it represents the living presence of the Eternal Shakyamuni Buddha and serves as a catalyst for the realization of our own Buddhahood.
Lotus World: An Illustrated Guide to the Gohonzon