Look at each one of those weird structures. Each stitch looks like this little weird star like knot of 4 strands of yarn that shouldn’t cooperate, should certainly not stay together, and yet they not only stay together but you can build on them and eventually create clothing (if you want) or a toy. Depending on your yarn and hook they can be huge and loose, small and tight, etc. One of my colleagues at the Community College at which I work stated that a stuffed bunny my mother crocheted (named bunbun) looked water-tight. (He is former Navy).
That’s my philosophy for the day. A hook and some fiber and you can conquer the world, right after I finish this next row.