Certainty

It is hard to keep up with
one's own mind and determination
Certain tides could only last that long
One could imagine our imagination
is as big as the blue sea
Yet when it comes down to the specific wave
at a specific time
One would feel as little as a tiny piece of sand
quite hopeless sometime
simply follow the rise and fall of the tides
of our own feeling
And the control is not up to our own moon
for sure