is this the end?

"While dark is the end of shadows, Shadows mark the end of light. Where dark begins the rise of light, Light marks the birth of shadows. And in this endless ebb and flow, What once was bright becomes concealed, The world spins round, both fast and slow, Till all we thought is now repealed. Yet still, we search for meaning’s thread, Through night and day, we seek the truth, For in the end, what’s left unsaid Is often found in youth's pursuit."