That is a question I heard alot but never think about answer for .. But sometimes somthing happen to me make me think that "It is the best thing (day) in my life" ..
And now -while I'm making a quick remebering for my all good days in my life- I can't find that best day .
But I can imagen the best day ever will be the day that I finish my time on this live completing my goal correctly and Rest in peace .
I can feel that proud when I realy work hard in great thing And I did it right then when I go to bed I feel that .