can anyone tell me what this question is asking me what informtion they want.

So i can answer it.

What are the cultural ans societal influences that have made Hinduism vital to the region in which it originated?

The question is asking why the Hindu "religion" spread over the SouthEastern Asia area. What is it about the culture of those peoples that allowed the Hindu philosophy thrive? Why is the Hindu "vital" to the region?

This is addressed in the Wiki article.