What is the main conflict in My Journey to Lhasa by Alexandra David-Neel?

Although they travel armed with revolvers and carry some modern objects such as spoons and a compass, the pair dare not reveal these item to anyone because they would ruin their disguise as poor native pilgrims. They take on the role completely, and beg for food and shelter along their way in the manner of other pilgrims.

The journey to Lhasa is treacherous. Bands of robbers roam parts of the country preying on pilgrims and other travelers. The region is mountainous and they are traveling in winter, and must hike through ice and snow.