Whisper of a wish

I know, I know the science
If you build your dreams on sand,
It will wash away with the tide.

I have remained silent,
At its whispers and sighs.

I know, but I don't know why - 

Love is unbreakable,
But the heart is fragile.

I have stood still,
As ages have passed by.
I know, I know that it flies,
But can't I just hold hands
And sit with time.

Just for a while?