We need Rain and the Sun shine to make things grow; like flowers, trees, grasses, bushes, crops out in the field, and etc.
A person also needs the Sun to brighten their heart, to light it up so to speak. We feel at peace with the world. The Sun is the good times, and good things that happens to us.
The Rain; it can darken our hearts for a while, it makes us feel sad because of things in our life that we have no control over, but at times we need the rain to grow and become stronger, to learn what we need to do to get the Sun back in our life again.
When someone we know has the Sun in their life we can feel their joy, and the warm light that comes from inside of them out.
There will always be beautiful rainbows after a rain,even at times when we don't see the rainbow, it is there.