Hello, I think this page will help u.Plz read:
https://www.travelchinaguide.com/silk-road/culture.htm

hello to am 4rm Ghana and am also conducting the same research and av found out that along this road the Buddhists built monasteries and these served as resting places for those who traveled along the road, and when they where leaving the gave the monks gifts which included money and others and they used these gifts to expand and build more monasteries at other places, am not yet done so when i acquire more info on this ad let you know