At different stages in life, we all need to have companions. It's our family when we are small, then we have friends as we grow up, later we have partners and mentors and good friends. And so, we start to have all kinds of changes and ideas in our mind, and will look at people around us from different perspectives. Yet we should never forget all those who have helped us in our life's journey, those who have been our companions. We must forever be grateful.