The sun comes up and the moon comes out.
Rain clouds form and it gently begins to drizzle.
Affection is quite similar, if you think about it.
However, even if the sun comes up and the moon shows itself on a beautiful dark night...
Affection can only be seen in the form of a rain cloud simply drizzling gently away.
Maybe, affection is simply about the drizzling and the simple gentle drip.