If I found myself trapped in the body of a snail, ambitions or a heavy sense of responsibility to make the world a better place would be utterly pointless.
As it would if I was trapped in the body of a seagull.
Or a monkey.
In each case, if I knew I was there for the rest of my life, I would just have to make the most of it and enjoy whatever I could, within the parameters of my existence.
Is it so different if I'm trapped in the body of a human?