While looking at how mainline Christians used Mormons to establish their own identity and negotiate the meaning of inspiration, I’ve lately been fascinated by Turner’s cruel little book, Mormonism in All Ages. Attempting to establish that Mormons are as crazy as every strange Christian heresy over almost two millennia, Turner invokes Mosheim’s Ecclesiastical History to describe the Quietists. According to Turner’s paraphrase of Mosheim,
They seated themselves daily in some retired corner and fixed their eyes steadfastly upon their navels, until a wonderful divine illumination beamed forth upon them and diffused through their souls peculiar delight. By this process they imagined that they acquired peculiar insight into the spiritual world, saw God himself with their bodily eyes, and other things equally strange and unutterable.
Watch out Timothy Leary.
Turner is rabidly anti-Mormon. I only recommend reading him if you’re interested in identity construction among mainline Christians (Turner seem Congregationalist from what I read of him, but he may be a conservative Presbyterian or maybe even Episcopalian. I haven’t yet researched his biography; he sure ain’t revivalistic.)
Mosheim is quoted widely in Mormon and non-Mormon circles in the 19th century and was one key reference for them in understanding ancient Christianity (this was true of other periods as well).