When I hear or read that phrase, I can't help but think: "What a stupid thing to say, how can you not take life seriously?"
Is life a joke? Is mortality a joke? Is it some kind of slacker creed?
Actually, I'm sure it's advice that I and other INTJs (and others like us) could use. So, what does the phrase mean to you? (anybody, that is

).
1. Life has expiration date.
2. In most cases one is unable to tell exact timing of death.
3. Shit happen all the way.
4. Quite awesome things happen on the way as well.
5. As one gets older he will become more and more aware of 1. and 2., and if he takes life too seriously he'll have harder time dealing with those.
6. So, it's best to accept 1.,2. and 3.; focus on 4th and do your best to enrich it.
To me, there are no rules how I should live my life. Well, there are actually bunch of sets of rules that are mutually contradicting each other, so I create my own rule: to not follow rules that imply life is serious business.
I have INTJ friend, when we talk about far future, he is willing to convince both of us he'll invent a machine to become immortal or to freeze him self so he could participate in space battles, rather than accept the fact we will both be dead. It's sad. (I'm not saying he's completely unaware of it and unwilling to accept sad reality, just saying)
It's actually fascinating that not taking something serious seriously, is more serious than if you took it seriously, yet it leads to less serious approach.
