Mate (drink)
After arranging the yerba along one side of the gourd, the mate is carefully tilted back onto its base, minimizing further disturbances of the yerba as it is re-oriented to allow consumption.  Some avalanche-like settling is normal, but is not desirable.  The angled mound of yerba should remain, with its powdery peak still flat and mostly level with the top of the gourd.  A layer of stems along its slope will slide downward and accumulate in the space opposite the yerba (though at least a portion should remain in place).