Tibetans are extremely pragmatic people, they do not understand why it would be necessary to be satisfied with a single prayer while whispering it while by turning a prayer wheel, hundreds of prayers can be activated per turn of the mill. They also invented flags that with each snap made by the wind send prayer into the atmosphere. They use the singing bowls to alter the subtle energies within them. Any practice has a very precise meaning and a useful function! Each object they use in their rituals is only intended to amplify and improve their practice to obtain more merits.