Maybe you don't know what you specifically want you just want stylized gnomes so you write "a gnome on a spotted mushroom smoking a pipe, psychedelic, colorful, Alice in Wonderland style" and by the end of it you get that massively long and stylized prompt.

Maybe you do know what you want but you don't want to come up with an elaborate prompt so you steer it in a particular direction like the cat example.

For the first one you can get similar effects by asking for variations but it seems like this has a very different drift to it. Fun, albeit expensive in comparison.