100% Trust

Is it something commonly said by one just to comfort another?
or is it something usually said for one's own benefit?

Yesterday is true but today is not
Why is that?
The reason, the cause?
Not known

Maybe yesterday's deceiving, today's the truth
Who is the fool? Who is the lucky one?
Not interested to know as never meant to compete for anything
It's not a matter of losing or winning
Did the best, but not realized, treated as the worst by the closest one, still believe because of wanting too much to heal, or maybe too afraid to lose anymore