Phra Rod Luang is a sacred Buddha image carved from reddish stone (laterite or sandstone), showcasing Tavaravadi-Hariphunchai artistic styles. It serves as the principal image in the vihara of Wat Mahawan Wanaram in Lamphun. According to legend, Queen Jamadevi brought this image from Lavo (Lopburi) when she came to rule Hariphunchai. This image is highly significant as the "Original Prototype" for the famous Phra Rod amulets (one of the Benjaphakhi set). Rishi Narada reportedly modeled the small baked-clay amulets after the features of Phra Rod Luang. The image depicts the Buddha in the Subduing Mara posture, seated in full lotus position on a lotus pedestal under an intricate Kanok arch.