Located in the Neiwan area of Maokong, Tian'en Temple is a faith center of the rising I-Kuan Tao religious movement. The temple rises four floors and is built in a traditional Chinese palace-style with white outer railings and vermilion pillars adding to its stately appearance. It is said that during the temple's construction, workers worked hard but unsuccessfully to dig a well. Later a water source was found behind the temple purportedly with divine guidance, earning the temple site designation as sacred ground. The spring flows with clear sweet water that is well suited for making tea.
Adherents of I-Kuan Tao worship both eastern and western gods and this eclectic spirit is also reflected in the temple. In addition to the statue of the movement founder, visitors will see the Maitreya Buddha, smiling gaily without worries in the main hall, with Guanyin (Avalokiteśvara Bodhisattva) and the Taoist deity Guan Gong (Guan Sheng Di Jun) on the two sides. The temple often holds classes for spiritual cultivation and moral guidance and scripture classes for children.