This article attempts to understand the impact of art, which transcends the scope of our perceptions and interpretations from outside the subject and brings unexpected insights during artistic activities, as “art's teaching.” It seeks to discover its educational dimension and outline a direction for art education that takes this into account. This endeavor stems from the recognition that art's inherent potential, which can bring about ontological transformations within the subject, is fading within an educational system focused on producing useful outcomes and a subject-centered educational paradigm that centers on the perceiving subject. Art's teaching, as an external force influences the subject's way of being in ways that are invisible and immeasurable. To explore the educational significance of this external teaching and how art's teaching operates within the subject, I will examine Gert Biesta's discussion on education and art education. Through this, we will discover the implications of art’s teachings that conflict with the subject's intention and will in art education and bring predicaments to the subject by going beyond the scope of understanding. If we take this into consideration, we will examine how we can view art education differently and what changes we demand from art education.