Although Chinese creoles formed the core of The Port’s identity, Mo Tianci came to preside over a tremendously diverse population additionally consisting of Qing sojourners and immigrants, Viet, Khmer, Siamese, Austronesians, and Europeans. They were multiconfessional, practicing Confucianism, Mahayana and Theravada Buddhism, Islam, and Christianity. He preserved the Cambodian noble hierarchy and official positions, while selectively adopting and adapting Sino-Viet institutions. In addition, he utilized religions and ethical systems, and devised some of his own practices for specific situations and depending on his constituency. Ultimately, he aimed to achieve two interrelated objectives: territorial expansion into the resource-rich hinterlands and the recruitment and retention of the population necessary to open up the new acquisitions.

Chapter 5 turns to attempts by French missionaries and envoys to convert the ruler of the most powerful state in Southeast Asia, King Narai of Ayutthaya, in the 1680s. It first lays out the setting into which these proselytisers arrived, playing particularly close attention to the elevation of the king in both divinised and righteous modes and his relationship with the sangha. It then shows how the commercial and administrative functioning of the kingdom pulled in sources of outside strength, which promoted the relevance of religious diplomacy. In the 1680s, a Greek adventurer, Constantine Phaulkon, became the most powerful officer at court, and he fashioned an image to the French of a ruler ripe for conversion, giving rise to a series of embassies received in Versailles and Ayutthaya. The French sought to enhance their prestige through the use of astronomical–astrological science and had a chance at a healing miracle in the 1660s. If this failed the French could take comfort from the fact that Narai was somewhat restless within his ceremonialised role, had tense relations with the Buddhist monkhood, was a cosmopolitan attracted to French culture, and was concerned to maintain the good will of Louis XIV. Some even portrayed him (mistakenly) as moving towards deism.

Buddhist nationalism has emerged again as a topic of scholarly and media attention, driven primarily by campaigns of violence and expulsion against Muslims in Myanmar, but also by similar dynamics in Sri Lanka and Thailand. Recent research on the intersections between Buddhism and nationalism not only follows the scholarly critique of methodological nationalism – resisting the urge to naturalize the nation and read it back anachronistically into history – it also questions assumptions of Buddhism as a unitary or even stable object of inquiry. “Buddhist nationalism,” where it exists, does not necessarily follow a set pattern; moreover, it is the conscious and largely intentional creation of actors with the relevant authority and stature to frame the two components as intrinsically connected. In doing so, they construct it through narratives and symbols of legitimation that are recognizably Buddhist and linked to particular cultural, ethnic, or political configurations.

This chapter presents a rough sketch of subsequent Buddhist philosophical developments – in the Theravada, Mahayana, and Vajrayana traditions. This chapter raises the question of whether "Buddhism" denotes a single philosophical system or a complex network of distinct yet interrelated philosophies.