Apparently, there are all the answers to life's questions in the Eastern culture. But at the same time it's not always easy to reveal it. There is also a special term in the Japanese language that covers all the elements which could help you to realize that you've made the right choice, but the elements must be combined.
The word is "ikigai". Complete meaning of the term is quite hard and detailed but it worth comprehension.
Probably you've read something from the ancient philosophers and maybe even modern psychologists whose books in bright snazzy covers are promising you all the answers and useful information on how to be happy and find your vocation.