As dance is to music; happiness is to joy. You may be traveling through trouble & sorrow while still carrying the characteristic of joy. Your eyes cry in sadness and your eyes tears in joy. The eyes are the window to the soul. They bring light into the body. The colors of reality are reflected through the concepts of joy.
As an eternal fire; as a passion of life, this is the fruit of joy. You may celebrate with emotions in movement which gives a dancing behavior that gives attention towards feeling of endearment.
Nothing is lost with change of theme or music style while you sing a song without activity of dancing to the music. Likewise to the music playing, this does not stop an eternal fire of the Holy Spirit expressing the fruit of joy when the song is no longer playing.
The spirit of joy is everlasting in the eternal flames of life; through the wedding as well as the funeral, through birth as well as discipline. It brings strength in the times of enduring pain. It also gives hope when darkness covers the hours, somewhat as a distance lighthouse on a starless night on an empty harbor.
The fashion of joy glows, forever gives as candlelight to the dark room in an environment of spiritual philanthropy.