Life is given to us so that we can experience God, and so that He can experience us. In good times and bad, in happy and sad, every moment is a gift of fellowship with God. God wants to experience you, and He wants you to experience Him, in every experience of life.
To illustrate fellowship I turn to Owl Moon, the classic story of a little girl and her daddy going owling in the Maine woods on a quiet, cold, snowy, moonlit night. The wordless communion between them is so intense and beautiful it brings tears to my eyes every time.
The audio quality is poor at first, but improves after a couple minutes.