The Difference of the Twins

How fragile is the happiness and how vulnerable is the heart.
What is the reason that the deepest feelings always are the the most painful ?
Perhaps the pain is more powerful than the happiness or the happiness becomes more dense in front of the pain ? Where is the beginning and where is the end ?
Perhaps everything is the same but in such a special form like the darkness and the one day after the other.

To understand is necessary to contemplate. Perhaps the mystery is that the pain always cries for the absence of happiness and although the pain calls, its tears frighten happiness.
Is the happiness conceited maybe? Or does she lacks vanity ? But there is a certain thing that they both are born and die in the same place.