Temples had been built to accommodate a sacred symbol of a particular god and have been decorated with sculptural figures recalling episodes from mythology. The temple, that has a self manifest idol of Hanuman, has an abnormal feature mounted inside the spire (Shikhara) in the form of a crescent moon https://hanumanmandiradelaide.com.au/hanuman-mandir-adelaide-a-spiritual-sanctuary-in-south-australia/