The book '28 Arahanta in Krung Rattanakosin Era' includes the biographies and the paths of practice of 28 highly revered Buddhist Venerables in Thailand. The book shows their relics, which according to Buddhist belief is a proof that particular monks attained Arahantaship. The relics of 28 Buddhist masters have been kept and displayed at Tutanga Jaedi (or Pagoda of Tudong) at Asokaram temple in Thailand.
* A relic is a bone like object that appears or gets transformed from hair, ashes, etc of Arahanta monks. It was believed that the purity and clarity of the Buddhist master's mind help polishing their body.