Yazaki's sculptures are transcendental handmade forms, crafted from wood, clay, and terracotta. They defy easy description, with organic spherical shapes connected by sinuous joints, geode-like clusters reminiscent of alien worlds, and enigmatic terracotta pieces that could be ancient relics. The artist emphasizes that the true essence of his art lies not in what you see, but in what emerges in the surrounding space and the invisible essence within each piece, giving them life.