Happiness is actually the joy of existence. You would think happiness comes from some kind of external thing, or even some kind of internal state of being for the more advanced, but all it really takes is just the awareness of existence, because that in itself is not different than joy/love/beauty and other qualities of Divinity, i.e. you feel more "alive" when you're in love, or appreciating nature, etc. When you achieve some goal, or you're with someone you love, or eating chocolate
-- what you're really happy about is the joy of existence during those states/conditions. Enlightenment is to remove all conditions and concepts that block this natural joy/love/bliss of the Self that shines forth when all the "clouds" are removed. Same as what drugs do, temporarily; they block off all the lower consciousness energies and allow the natural unconditional joy of higher consciousness to shine forth.
So in a way, all happiness is spiritually-oriented, just that it isn't recognized to be so. Which is totally fine -- you don't need gurus or scripture to tell you that love and kindness to others is a good thing
What's important is that we institute these spiritual practices in our lives -- it doesn't matter if it came from the Bible or a fortune cookie
