The entire Pema Ts'al campus was bustling with construction. Lama Kunga informed us that one day he had 9 different work crews at the monastery. Days start early with puja around 6 for the monks, and then workmen around 8 with much banging and clanging all day.
One afternoon the monks labored with some grey base used to create clay forms for use in the temple. It started as a bag of dry grey "stuff". They added water, hammering and manipulating it until it was pliable.