Allen and his family moved to Burlington in 1787, which was no longer a small frontier settlement but a small town, and much more to Allen's liking than the larger community that Bennington had become. He frequented the tavern there, and began work on "An Essay on the Universal Plenitude of Being", which he characterized as an appendix to "Reason". This essay was less polemic than many of his earlier writings. Allen affirmed the perfection of God and His creation, and credited intuition as well as reason as a way to bring Man closer to the universe. The work was not published until long after his death, and is primarily of interest to students of Transcendentalism, a movement the work foreshadows.