You explained well. If I have ten million euros, I may feel I’ve made it in life but Elon Musk falling back to such amount may be a disaster to him.
Money may not buy happiness but may serve as a source of joy. Let’s take for example, what will make me happy now? I would love to go to Santorini with my family. How do we get there? Money of course but we do not have the money which has hindered us from deriving the happiness that we deserve.
Then, if I’m to explain rich in my own way, I’d say it is the ability to be able to provide the basic needs for one’s family and extra. What are the extras? The vacations, travels and all because I’ve got to learn that many people find it difficult to satisfy their needs even without talking about the extras