Life ISN'T a video machine. It DOESN'T have a Rewind, Stop, Pause, or an Edit/Re-Record button.

You record once, and that's it.

And you never know when the tape's going to run out.

I guess the major point is that reincarnation or not, we only get one shot at THIS life, and you never get the bits back that you waste.
Record well.

Yes, there are FastForward and Eject buttons, but they're extremely wasteful.