So, what about that why behind all other whys? Where does that come from? If it is so important, it ought to be pretty readily understandable.
For many, many people, there would be some basic belief. The primal why, for many, would be how they understood their place in creation in relationship to the creator. So it is for me.
My personal life mission is this: create the circumstances wherein people can become the best versions of themselves. This comes from my why behind all other whys: It is the purpose of the created to show the love of the creator to all creation. My purpose for living grows directly out of my understanding of God and my relationship with God.
Frankly, while I suppose others have other sorts of sources for their why, I cannot think of any examples. But, I stand by the claim that every mission or purpose needs to grow out of some why behind all other whys.
If you are trying to live a content and joyful life, then the first step is to drill down through all the reasons you do things. If there is no single why behind all other whys, you probably will have a problem working out that joyful approach to living we've been talking about.
That's the starting point. What is at the core of why you do anything? If you don't know, then you need to find out.