They say mindfulness and living in the moment is one of the keys to happiness. I do think that a lot of people live in the in the past or the future rather than the present... I am one of them too, but I'm working on changing that and freeing myself from the chains of the past and the fears of the future hehe, so what about you? :P
I am really conflicted about this and similar statements.
"live each day as if it were your last"
A. It is beyond irresponsible to not consider long term effect of choices. Sure some times we choose in the moment and most of those do not have far reaching effects, but to not ever consider consequences... not smart or doable.
B. if you do not plan a future someone else will, and they will own you.
C. its just not possible. If a person knew that today was the last the were ever getting they would of course choose to do, visit , see different things. But those do not need or even want to happen every day. Unless you are independently wealthy your need to address the bad habits of living, sleeping(indoors ) and eating regularly.
I think what they really mean is more "wherever you go there you are" choose to embrace that moment and make it yours.