Inside the Phra Mahathat Jediyamangkolsiddhajar, there lies the sacred body of Luang Por Ruay, encased in a glass casket that remains intact and unspoiled. It is beautifully adorned, showcasing the reverence bestowed upon him. Luang Por Ruay was a highly esteemed monk known for his deep compassion and simple lifestyle. Masterful in various sacred sciences, his powerful amulets are filled with profound Buddhist blessings, offering protection from harm and attracting goodwill and kindness.