Everything seems to have an end. Time marches forward relentlessly. The river flows, whether you appreciate its subjective acceleration or not. The finite nature of everything can bring forth in us an attitude of gratefulness for existence. If everything fades, how truthfully moving is it to be a witness to anything at all.
Borrowed from Stoic ideologies, familiarizing yourself with the loss of something has the power to heighten your sense of appreciation. Finitude creates meaning. The finality of life may even be the only reason meaning is even perceivable. We seem to forget this all too often as life can, at times, seem intolerably long and dull. But remember: this might just be, the last time.