how to make good poetry

Here is an example of a perfectly good poem:

I raked leaves today
down
down
down
down
down
off the roof onto
your job interview came in the mail?

Powerfully suggestive, endlessly evocative, but ultimately impossible to parse.

Here, by contrast, is a shitty poem:

Mark lent me his ruler this morning

What makes it bad? The lack of mystery, of the suspense of un-knowing, or antiknowing, or "knowing without knowledge".