What is important, and what is not.
That's the question that vexes us most - or if it does not, it probably should.
The thing to remember is that nothing in life is a one shot deal. Things that look insignificant today might cast long shadows tomorrow, and stuff that we lose sleep on now will pale into insignificance before the ink is dry.
So how does one decide ? How do you make any choices when you know so little about the future, about the pattern of events that will eventually cross your path ?
It is actually quite simple. Since the consequences are fundamentally un-knowable in advance, the only thing to hang onto is your values - your ethical compass.
It sounds trite and wishy-washy, but it is real. When the fat lady has sung, when the party is over, when the day of reckoning arrives, when you have achieved everything, when you are well and truly sated - the only thing that will keep you going is the knowledge that your actions were consistent and driven by whatever you believe in.
So let us revisit the question: What is important and what is not ?
In the long term, the only important thing is your intention and your belief system - the rest is mere detail.