i can see two cowboys looking/caring for a horse in a barn
I can’t draw very good my art is only good when i’m high
Take EDM for example; it's a combination of words and sounds all cramed together to create a piece of music, most of the time it has no official reason or back story but is simply made to be enjoyed. This concept is the same with Jazz music. When jazz was invented there was no definitive reason or way to play it, you just grabbed an instrument and started playing whatever cords and rhythms you thought sounded nice.
There are many artistic tasks that the monks and nuns performed at the time. Here are some of such options:
1. painters - given that they had some free time, monks and nuns resorted to painting to kill time
2. weavers - nuns would usually weave or embroider in order to create beautiful patterns of cloths
3. carvers - especially monks did this - carving wooden objects was a good way to both train and entertain themselves