William Ellery Channing II was an American Transcendentalist poet, nephew and namesake of the Unitarian preacher Dr. William Ellery Channing. His uncle was usually known as "Dr. Channing", while the nephew was commonly called "Ellery Channing", in print. The younger Ellery Channing was thought brilliant but undisciplined by many of his contemporaries. Amos Bronson Alcott famously said of him in 1871, "Whim, thy name is Channing." Nevertheless, the Transcendentalists thought his poetry among the best of their group's literary products.

Transcendentalism is a philosophical, spiritual, and literary movement that developed in the late 1820s and 1830s in the New England region of the United States. A core belief is in the inherent goodness of people and nature, and while society and its institutions have corrupted the purity of the individual, people are at their best when truly "self-reliant" and independent. Transcendentalists saw divine experience inherent in the everyday, rather than believing in a distant heaven. Transcendentalists saw physical and spiritual phenomena as part of dynamic processes rather than discrete entities.