He was undoubtedly influenced by that line of thought, although I'm not aware of any direct references to the Hermetics. He certainly followed in the gnostic tradition as a "disciple of his own mind," and after leaving the unitarian church, it becomes clear that his most profound influences are those of the esoteric variety.
Here is another incredibly rich Emerson quotation from
Nature:
"Crossing a bare common, in snow puddles, at twilight, under a clouded sky, without having in my thoughts any occurrence of special good fortune, I have enjoyed a perfect exhilaration. Almost I fear I think how glad I am. In the woods, too, a man casts off his years, as the snake his slough, and at what period soever of life is always a child. In the woods, is perpetual youth. Within these plantations of God, a decorum and a sanctity reign, a perennial festival is dressed, and the guest sees not how he should tire of them in a thousand years. In the woods, we return to reason and faith. There I feel that nothing can befall me in life,—no disgrace, no calamity, (leaving me my eyes), which nature cannot repair. Standing on the bare ground,—my head bathed by the blithe air, and uplifted into infinite space,—all mean egotism vanishes. I become a transparent eye-ball; I am nothing; I see all; the currents of the Universal Being circulate through me; I am part or parcel of God."
Mind-opening
Interpretation
Edit: I may have spoken too soon. Check out the link below.
"His attention to science, energized by his other reading in the great hermetic thinkers (Bruno, Boehme, Swedenborg) and in Romantic writers (Goethe and Coleridge), constituted his literary apprenticeship. ... In conducting the invisible, ubiquitous forces of nature into texts meant to reveal the grandeur of the cosmos, Romantic poets inaugurated a revival of the universal science dreamed of by the hermetic alchemists of the Renaissance, those equally ambitious experimenters who toiled in their smoky laboratories toward a universal synthesis of science, art, and religion. ... Emerson, in his scientific and religious quest for unity in nature and art, is firmly in this tradition of 'Romantic science', what might well be called a 'new hermeticism'."
Emerson's Sublime Science