How did the Spice Route influence the spread of world religions in Southeast Asia?

Since the beginning of the new era, immigrants from India preached Buddhism on the islands of Indonesia and in Indochina. By the 7th century they reached the shores of China and Japan, where Buddhism is now very widespread. Starting from the 9th-10th centuries, Muslim sailors sailed from the shores of the Persian Gulf in the footsteps of Indian sailors.In the 16th century, Catholic sailors sailed to these areas from Europe and began to preach. In Vietnam, the influence of Buddhism and Catholicism is equally strong.