A double Dorje, or vishvavajra, are two Dorjes connected to form a cross. This represents the foundation of the physical world and is also associated with certain tantric deities.
The vajra is a symbol found in ancient Hinduism. The Hindu rain god Indra, who later evolved into Buddhist Sakra figure, had this as a thunderbolt for his symbol.
In tantric iconography, several figures often hold the vajra are Vajrasattva, Vajrapani, and Padmasambhava.
Vajrasttva is seen in a peaceful pose with the vajra held to his heart.
Wrathful Vajrapani wields it as a weapon above his head. When used as a weapon, it is thrown to stun the opponent, and then bind him with a vajra lasso.
The 8th-century tantric master, Padmasambhava, used the vajra to conquer the non-Buddhist gods of Tibet. Padmasambhava is an ascended Master who perfected the transportation of his soul and consciousness into a rainbow body of light. He claimed that this technique was taught in 13 star systems throughout our galaxy. He transported into the realm of the Christ consciousness. You can find Jesus surrounded by the same rainbow body of Light in medieval Catholic artwork.
