Quote Originally Posted by Mr. Happy
IMO, Forgiveness is the key to happiness. For everything that we don't forgive, we are going to re-experience it is some form until we do. In a passage from A Course in Miracles it says:

"Consider the Kingdom which you have made, and judge its worth fairly. Is it worthy to be a home for a Child of God? Does it protect his peace, and shine love upon him? Does it keep his heart untouched by fear, and allow him to give always without any sense of loss? Does it teach him that this giving is his joy, and that God Himself thanks him for his giving?" -A Course In Miracles.

Isn't this hell on earth we have created just a dream, flawed perceptions, misconceptions, fear, blame, where salvation is the body and death is its god.
Heaven and Hell are at our command based on what we want to be true. If we believe the body is true, then there is great suffering at its loss. If spirit be true, then the world will transform before your eyes through complete forgiveness. There can be no exception. Complete forgiveness of self and everyone and everything is bliss and our original state of pure love. God bless you, each and everyone. Happy.
Happiness is not a lock, therefore it has no key.

What is happiness the key to? ask yourself that now, instead.