1. They are creating a colonies, and the baker is their god.
I know. It's just a little bit blasphemous, but I can't help it. Now, not only is the baker their god, but the baker is a vengeful god. They give the little yeast beings life, allowing them to flourish and grow. Then, out of nowhere, the god reaches down from the heavens, and releases their wrath. Pounding on them, flattening them to smithereens, destroying their livelihood. I know that it's just getting rid of gases (isn't science neat?), but it still seems horrible. If I were part of the yeast colony, I would be picturing this:
2. Try picturing yeast as adorable little fluff balls that make high pitched singing noises.
In reality, baker's yeast looks like this (on a microscopic level)...
Apparently I have a huge number of issues. I'm kind of shocked that I eat bread.