Jacky Cheung's "有個人", in particular the last verse "到公園中散步年紀 有老伴仍是你". I'm impressed every time I hear the song (esp sung by Jacky Cheung) and even when I read the lyrics. It's really thankful to have a companion who will walk with you in times of happiness, sorrow, difficulties......
It's so sweet when an old couple still walk hand in hand, loving each other...........