What are Perennial Questions?

Just as perennial plants bloom and bear fruit each year, perennial questions return time and time again to a new landscape of thought. Questions which deal with answers not easily found, such as matters pertaining to our origins, our consciousness, or the concept of existence, tend to be perennial in nature.

Some examples would be: Who am I? Where do I come from and where do I go? Is what I believe really true?

Korean philosophy has not fully answered the questions that have been raised in the history of Western philosophy, but it has many intriguing sources that may offer new perspectives to these perennial questions. Concepts from Neo-Confucianism, like Li (principle) and Qi (psycho-physical force), or about our moral nature, can be interesting angles to view perennial questions on, for example, morality. What other perennial questions can you think of?