Conversation so far:
Where are the Sinhalese people from?
The Sinhalese people are an Indo-Aryan- ethnolinguistic group native to the island of Sri Lanka.
What do the Sinhalese people make?
The Sinhalese culture main domains are sculpture, fine arts, literature, dancing, poetry and a wide variety of folk beliefs and rituals traditionally.
Where did the Sinhalese People go from Sri Lanka?
Sinhalese people have emigrated out to many countries for a variety of reasons. The larger diaspora communities are situated in the United Kingdom, Australia, United States and Canada among others.

Question: What did they need this for?
Self-contained rewrite: What did the Sinhalese People need sculpture for?