So, from the use of these drums, we can see:
(1) Evidence of animistic rituals throughout Southeast Asia.
(2) Evidence of prehistoric trade networks, which distributed such objects to many places.
(3) The esteem given to ancestral heirlooms (e.g. the drums) in many locales, which is evidence of adat in ritual.
(4) The importance of status as an element of ritual (as people try to demonstrate higher status by using prestigious objects in rituals of marriage).