saudi aribia
That depends what region you are talking about.
No.
Their most important thing to them was their gods and religion..
Russia's most important economic region is greater Moscow.
the most important holiday of the jewish religion is hanukkah
Rites are not important in most religions and not used in most religions.
The religion that Muhammad is favored is the Islamic religion. The Islamic religion regards Muhammad as its most important prophet, and pilgrims to sites he visited are important parts of the religion.
Catalonia is probably Spain's most important region since it has much of Spain's commercial and industrial centers.
oil is the most important resource in the region
There are several kinds of religion that are practiced in the region. THe most common ones are catholiscism as well as christianity, but there are others.
The most important resource for the whole region is oil.
I do not know any religion but from my religion I know it is important to pray every day at any time.