The Tao (or Dao) is the unnameable, spontaneous, and harmonious process of reality described in the Tao Te Ching. It is the source of all being and the way of natural virtue (Te). In poetry, the Tao represents the ultimate, mysterious flow of existence that cannot be grasped by intellect but only intuited. Poets use imagery of water, valleys, and the "uncarved block" to suggest its yielding yet inexorable power. It appears as a theme of living in effortless harmony, embracing simplicity, and aligning with the deep, silent rhythm of the cosmos.

The Tao (or Dao), central to Taoism as articulated in the Daodejing, is the ineffable source and pattern of all existence—“the way that can be spoken is not the eternal way”; it emphasizes wu wei (non-action), naturalness, and harmony; in poetry, the Tao inspires imagery of flowing water, uncarved wood, and quietude, serving as a counterpoint to rigid dogma and a call to intuitive alignment with cosmic rhythm.