The writer Andre Gide relates this experience of a trip he took into the Belgian Congo:

My party had been pushing ahead at a fast pace for a number of days, and one morning when we were ready to set out, our native bearers, who carried the food and equipment, were found sitting about without any preparations made for starting the day.
Upon being questioned, they said, quite simply, that they had been traveling so fast in these last days that they had gotten ahead of their souls and were going to stay quietly in camp for the day in order for their souls to catch up with them.
So they came to a complete stop.