Your melody represents life.
Most of the time chords support you.
They amplify and boost you up.
Then there are the notes.
They go up and down to symbolize
the constant rollercoaster ride of emotions.
Your emotions also change the quality of your supportive chords.
You can make your support minor
or you can make them happy and major.
There are times of dissonance and tension
but also release and resolution.
Your tune can be sorrowful, pitiful, mournful or joyful.
It's all what you make it.