Main points,
Happiness - as in feeling nice and being well -will slip away if you work for them directly, for that entails stress and fear.
The method for being happy is to just do good and not aim for happiness.
The paradox is that not aiming for happiness is the right way to aim for it. You tell yourself a lie to get it to work. If it is godless and selfish to lie, then that is anti-God and selfish.
I therefore only need me and this method to take the chance to be happy. God, religion, Jesus and therapists (sometimes) are taking advantage of me as in trying to intrude in my job.
I cannot inspire others around me to be happy unless I use the method and be an example. It is self-interest to promote happiness. Everybody wins.
Happiness is when you become your own God and own authority in the way we have prescribed.
Happiness is a spectrum and happiness arises when you wait for happiness to come and accept that it will not be a final goal but a stepping stone to something else. Final goal views of happiness [Nirvana, Heaven, Paradise Earth] only make you miserable. It is too far off and nobody reaches it.
There are those who say spirituality is the best form of happiness. But materialists can be and are happy. And what does spirituality mean? Happiness is clearer. Don't obscure with spiritual or religious jargon.