An instrument symbolizing vajra is also extensively used in the rituals of the tantra.
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Various figures in Tantric iconography are represented holding or wielding the vajra.
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Padmasambhava holds the vajra above his right knee in his right hand.
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Other Tibetan Buddhist art includes metal ritual objects, such as the vajra and the phurba.
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In Buddhism the vajra is the symbol of Vajrayana, one of the three major branches of Buddhism.
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Vajra is also a common male name in Tibet and Bhutan.
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The conical metal cap and its vajra at the top of the dagoba were supposed to have earthing properties.
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Because of its symbolic importance, the vajra spread along with Indian religion and culture to other parts of Asia.
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The vajra is representative of upaya whereas its companion tool, the bell which is a female symbol, denotes prajna.
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More examples
Indra's thunderbolt
The following is the elaborated list of fictitious terms, background information and specific definitive technological terminology from the anime series Macross Frontier.
A Buddhist ceremonial mace and symbol, usually interpreted as both a diamond and a thunderbolt; One of the five central Buddhist principles, representing indestructible substance that cuts and penetrates through emotional instability or uncertainty
(Tibetan, dorje.) Diamond-sceptre held by certain meditational deities that represents bodhicitta, the mind of enlightenment; adamantine, pure.
(Sanskrit; Tibetan rdo-rje, "diamond" or "thunderbolt). Double-headed ritual instrument in Tibetan Buddhism used along with a ritual bell. The vajra is held in the right hand and represents skillful means, compassion, samsara, and the masculine principle.
A raaga in which one or more of the 7 swaras is missing in either the ascending or descending scale. The missing swara is a vajra swara. For example, in SRGPDS, ma and ni are vajra
A Sanskrit word meaning both thunderbolt and diamond and a ritual tool or spiritual implement which is symbolically important to both Buddism and Hinduism. Vajra destroys all kinds of ignorance, and itself is indestructible. ...
A Tibetan term for the male sexual organ meaning "thunderbolt" or "scepter of power."
The "diamond" scepter used in Tibetan and other types of Buddhist ritual, symbolizing compassion.