I would love to be as happy and energetic as Jesse the Amazing Jack Russell.
How can any sentient being be so contented and happy? I suspect it's all about not over-thinking anything and simply doing the job in front of you.
Which is a pretty good mantra: don't over-think (translation for humans: don't take things too personally or seriously), and do the job in front of you (whatever should or needs to be done).
Life could be that wonderfully simple....