Grammatical Analysis
Thūpa: [m.] Stupa; mound; reliquary monument. (Sanskrit: Stūpa).
Orthodox Definition
A Thūpa is a monumental, dome-shaped architectural structure designed specifically to house the corporeal relics (sarīra-dhātu) of enlightened beings.
In the Mahāparinibbāna Sutta, the Buddha explicitly declared that four types of individuals are worthy of having a Thūpa erected over their remains: a Fully Enlightened Buddha, a Paccekabuddha, an Arahat disciple, and a Universal Monarch (Cakkavatti).
Building, repairing, or simply paying homage to a Thūpa is considered a supreme act of merit-making in Theravāda practice. The structure serves as a physical substitute for the living Buddha, providing a focal point for devotion (saddhā) and recollection (Buddhānussati). In Sri Lanka, thūpas (commonly called Dagobas) evolved into massive architectural marvels, such as the Ruwanwelisaya.
Textual References
- Sutta: Mahāparinibbāna Sutta (DN 16) – The Buddha’s explicit instructions to Ānanda on how to treat his physical remains and the injunction to build stupas at the crossroads to inspire faith in the masses.
- Historical: Mahāvaṃsa – Entire chapters dedicated to the epic construction of the Great Stupa (Mahāthūpa) in Anuradhapura.