I agree with your observation. In fact, the Chinese Culture is too broad to be explain in just one or two paragraphs.
I am of the view that the culture itself stems from creating and maintaining harmonious relationships, which refer to both vertical and horizontal relationships. The vertical relationship refers to all relationships from our ancestors, ourselves and our successors. The horizontal relationships refers to all relationship between us and other people. It's indeed, for me, a complex equation.
Notwithstanding this, such relationships also refer to the relationship between us and God and also nature.
It is really unfortunate, however, that some elements of this culture are disappearing nowadays. Perhaps i am wrong but younger generations do not put much attention on this old yet wonderful culture.
A simple answer using simple words from a simple and humble man