Understand

There are happiness and sadness that we can see and we can tell.
but sometimes there are that we don't know it's existence.
we don't know at all.

Things that we don't know, we have
Things that we don't know, we don't have.
or either we stand on the right way we should or not.
I don't know the truth and I'm trying to search for it.

I am not always right, I know that.
sometimes we need to give others chance to think that they're right.
well, it was not our fault to have different opinions anyway.

I just don't know why I sad, happy, upset etc.

when people ask me why..why and why,
I can't really explain the truth.

why it is so hard to understand people and make people understand us without having any misunderstood in the middle?