It is not. Happiness is not a decision as I watch such affirmations in “self-help” videos and spiritual/psychological writings. Although those things are produced with good intention, they lack depth.
It is amazing how little we know ourselves.
The mind, the will to make a decision (which is another mind driven activity) has nothing to do with FEELING happy.
Let us say that I make a “decision” to be happy. Then, as the day goes on many things will happen out of my control: Relationships, unforeseen circumstances, health issues, etc. Little by little, my “decision” will be forgotten and frustration will set in, for “my” control is gone.
Despite remembering “my decision” in the face of adversity; I will find out that I could look “cool and happy” in the outside but inside it will be a repression of a “bad” emotion. Many make themselves “believe” (mind) that they are happy when they “remember,” (mind) but that is a fake position.
Happiness is related with stable emotions. That is the outcome of having gone through the emotional healing process and the recognition of FEELINGS as the main engine of living Life.
Happiness then is a natural outcome, something which is experienced without reason, without a cause, without forcing a decision or a choice.
Happiness is the path of leaving the mind as the pilot of our lives, and embracing the “heart,” feelings.
As most individuals spend their times thinking rather than feeling, then unlearning that sort of “progress” dictated by our modern world, will be necessary to re-learn to feel.