Like ying and yang,
life is full of good and bad,
the good is mixed with a drop of bad,
the bad mixed with a drop of good.
both need each other to be strong,
without one the other fails and disappears,
with only good you wont appreciate it,
with only bad you'll loose the will to live.
so with a mixture of the two,
you will be happy and know the full truth,
only with the mixture of the two will you be strong,
without one or the other you shall loose the battle.