Having cast away all deeds: who could obstruct him? Like an ornament of finest gold: Who is fit to find fault with him? Even the Devas praise him, even by Brahma is he praised.
AN 4.28 - Ariya-vamsa Sutta Translated by Thanissaro Bhikkhu
Happiness and sadness are two sides of the same coin; they are greed for the world and despair for the world . When we disengage from the world we are setting aside the conditions of the world, we are not doing the things we want or the things we think are corresponding to the path we are following a path which has as its basis ‘Discipline’ Ethical conduct and Wisdom .
We like to be happy, but we can get to a point of not knowing what to do when we are happy because we get use to struggling, and we can get so use to this course chasing what we like and feel comfortable with, and start perceiving the middle ground as more expansive and encompassing than it is.
The Middle path  is hard to see, and has been describes as finding an overgrown path in a jungle, hard to find but there, we just need to look hard to see it initially and continue with diligence to stay on it.
At the end of the day I may be right, I may be wrong, but I share this hoping I am one, the other, both, or neither.
- The Eight Worldly Conditions
- The three divisions of the eightfold path Discipline being 8- Concentration and 7- Mindfulness, and 6 - Effort, Ethical Conduct being 5 – livelihood, 4 – action, 3- Speech and, wisdom being 2 - Intention, 1 - View.