In order to understand this one must realise that a monk had very few real enemies in the world - they were above these worldly pursuits. But, monks still had to eat, and tend their gardens in order to do so - and what likes monks gardens more than the monk does?
Why, snails of course.
So when monks were not bent over, copying ancient secrets for future generations to pore over, they were to be found in their gardens, eradicating their mortal enemy the snail, lest the monk be forced to starve to death. To a monk in a tower, engaged in little other than intellectual pursuits, the mightiest foes indeed were the little creatures who could starve the inhabitants of the mightiest holy towers.
So, that's why there are so many snails in the footnotes and margins of history. Because they were the mightiest foe for such humble folk to imagine...
Sure, but that's all make-believe; snails are real.
Not from the perspective of many (but not all) monks. I think you're having a theory of mind failure here.
It's not like old Scratch is a stranger to using animal proxies. His first documented appearance has him in snake form.
And some others, if you'll excuse the listicle: https://listverse.com/2017/11/29/10-weird-trends-that-keep-s...