1) Life is a vacation from whatever it is that we were doing before we got here, which must've been extremely boring and is therefore unknown to us.
We may not have even had a physical form before life here, and the five senses are a bonus along with emotion and time. You still have to supply any and all of your own needs and will develope many vices while experiencing your vacation, and may return to work at any time you feel like punching out. Just remember that you never know when you'll get another vacation.