Vayu

Fengtian is Vayu, originating in the Vedic wind deity of ancient India and grouped alongside deities such as Agni (Fire Deva) and Varuna (Water Deva) among the Twelve Devas and Twenty Devas of Buddhism, where he governs the wind element. In Esoteric Buddhism, he is assigned to guard the northwestern direction; devotees invoke him during rituals to quell wind disasters and safeguard travellers and seafarers. Scriptural accounts also portray Fengtian as a benevolent Dharma protector who regularly attends Buddha assemblies to hear the teachings and vows to shield practitioners engaged in sutra recitation. Though his divine identity developed independently from the Chinese wind deities Fei Bo and Fei Lian, their functional roles—controlling wind and ensuring atmospheric harmony—converge. In temple iconography, Fengtian is typically shown holding a wind banner with garments flaring against the gale, embodying sovereign mastery over the wind; thus he stands among the Buddhist protectors who harmonise weather, safeguard the nation, and ensure public welfare.