The sociology, it fails me

Why do people put โ€œartโ€ on their walls that say things like โ€œLive Laugh Loveโ€ and other such saccharine crap?

Try as I might I just canโ€™t understand it.

Whatโ€™s the message? Is it hopeful? Signaling? Who is the audience and what message are they supposed to receive? Do you need to remind yourself of that, really?

I have so many questions. The semiotics is beyond me.