He was a strong believer Buddhist and built some of Bangkok's finest temples, including Wat Arun and parts of Wat Pho. He also introduced Western medicine in the country, including smallpox vaccination, and arranged so that the American missionaries were allowed to enter the country.
Siya ay isang malakas na naniniwala Buddhist at built ilan sa pinakamasasarap templo ng Bangkok, kabilang ang Wat Arun at mga bahagi ng Wat Pho. Din Siya nagpasimula ng Western gamot sa bansa, kabilang ang smallpox bakuna, at nakaayos upang ang mga Amerikanong misyonero ay pinapayagang pumasok sa bansa.