The Vajra Kartika: A Ritual Knife for Cutting Through Illusion
The two most common forms of Jingu Yue knives are the single-blade and the cross-blade types, which serve both cutting and hooking purposes. An artifact named "Two Vajra Kartika," dating to the mid-19th century, resides in the collection of the Basel Cultural Museum. Meanwhile, a Golden-Handled Vajra Kartika from the 19th century, kept at the Royal Ontario Museum, has a hilt shaped like a Capricorn and is intended chiefly for severing.
Master Jumi (Ju Mipham Namgyal Gyatso; 1846-1912) stands by. The imagery depicts a ferocious iron hook ripping out an enemy's eyes, and a blazing axe severing the lifeline. An eighteenth-century 'Single blade Vajra Kartika' is housed in the British Museum, while a fifteenth-century 'Vajra Kartika of mantra' is in a private collection; the blade carries a mantra inscription.
In the ritual texts of the First Gendun Zhuab (དགེ་འདུན་གྲུབ་པ་; 1391-1474), the vajra chopper knife is primarily characterized as a weapon for vanquishing demonic enemies and vow breakers, while also serving as a symbol of severing attachment to all phenomena. Descriptions of the knife's functions and symbolism, however, vary somewhat across different texts. When the great master Atisha introduced the deity Mahakala, the Holder of the Trident (མགོན་པོ་གྲི་གུག་), who carries a vajra chopper knife, to Tibet, he came to be regarded by many sects as one of their principal deities.
Gendun Zhuab, in addition to composing ritual texts connected to the Holder of the Trident, condemned a frequent error of that time: people mixing up ritual instruments that looked alike, particularly vajra chopper knives. Descriptions of the vajra chopper knife's various uses include an upward swing that signifies conquering and severing ego attachment. This confusion persists even today—for example, a battle axe might be mistaken for a longer chopper knife.
People today often simply view the paring knife as an ancient South Asian weapon, but that conclusion is rather one-sided. In the textual context of South Asia, the Kartika (कर्त्री；གྲི་གུག་) usually appears in three relatively distinct contexts. The image above includes a Vajra Kartika as well as the venerable Radun Juba. Furthermore, an 18th-century work titled "Holding the Scepter, Arrogant Ruler" is housed in the Ruben Museum of Art in New York.
In later esoteric traditions, the Kartika's purifying function is symbolized in settings such as the charnel ground landscape, where it is employed to handle corpses during funerals. It also serves as an instrument for slicing ritual offerings in specific ceremonies, thereby underscoring the concept and practice of "devotion." Additionally, the Kartika is regarded as a tool for vanquishing enemies and taming living beings, though accounts of its direct use in combat are rare.
Within the three contexts, the paring knife is often considered a component of other weapons or ceremonial instruments precisely because of its many ways of use—cutting, hooking, picking, and stripping, each with distinct connotations. When employed together, these four methods embody a "creative subject consciousness".
Shi Mu, embodying the Supreme Snow Mountain Goddess, carried a ceremonial sacrificial sword in her right hand—the weapon that had decapitated the water buffalo demon. This blade, dating to the late 19th century and now held in the Metropolitan Museum of Art's collection, served as a foundational source for numerous tantric tools, such as the axe and short blade. Meanwhile, "The Forest Retinue," which dates to the mid-1800s, is preserved at the British Museum.
Among the five attendants of the Puzhang master is a young girl from the "Buza family" (པུ་ཏྲ་མིང་སྲིང་). Though she is often wrongly described as holding a crescent-shaped axe, her right hand actually carries a short-bladed weapon (क्षुर；སྤུ་གྲི་). As a rule, the Vajra, Phurba（ཁ་ཊ་ཀ་）, and Kapala（ཐོད་པ་） are regarded as the three central spiritual symbols（གྲི་ཐོད་དང་ཁ་ཊྭཱཾ་） of female deities (or practitioners).
Practitioners can envision the process of placing their wisdom into a container. The Vajra embodies wisdom, the Kapala embodies method, and the Phurba represents the union of the two. When confronted with dangers posed by hostile spirits and ego-driven defilements, the deities employ these implements to peel off the outer layers of those threats and extract their “flesh”—a symbol of skillful means—into the Kapala.
During the 'cutting' practice performed by the Vajra, every impediment to spiritual development can be eradicated, for instance, afflictions and the dualistic obstacles of knowledge (ཉོན་མོངས་སྒྲིབ་) as well as delusion (ཤེས་བྱ་སྒྲིབ་). Within the Sakya tradition's liturgies, the Vajra's core is to cut through afflictions, nurture non-dualistic wisdom, and realize the non-duality of wisdom and skillful means.
The Zanabazar Fine Arts Museum houses "Lion-Faced Dakini", which dates to the mid-19th century. The lion-faced dakini holds a vajra chopper knife capable of dispelling the four obstacles that obstruct the right path: desire, external obstacles, hearers of the lesser vehicle, and solitary realizers of the lesser vehicle. In New York's Rubin Museum, meanwhile, the late-18th-century "Vajravarahi" depicts a Bodhisattva swinging a jade-edged sword downward, completely severing the source of cyclic existence and undertaking the majestic task of unimpeded action.
In a private collection, "The Selfless Buddha Mother," dating to the mid-16th century, features a Vajra Knife placed atop a skull cup. This arrangement symbolizes the fusion of feminine wisdom with a compassionate heart, which has the power to pierce through the three impediments to spiritual practice: desire, aversion, and ignorance. Axe knives are typically categorized into three distinct varieties.
One kind is the standard kartika, with a straight end and a curved end—for example, the golden handle kartika presented earlier in this article. Another kind is the "moon seal Kartika" (ཟླ་དབྱིབས་གྲི་གུག་), used by certain protectors (such as the black robe master) and female deities; this axe knife is crescent-shaped and has hooks on both ends. As for the burning axe knife, it bears the eyes of deities that keep watch over sentient beings.
The 'Mantra Vajra Kartika' (18th century, private collection) is a design example belonging to the third Vajra Kartika Blade category. This piece is an instance of the final type, the 'double-headed Kartika' (གྲི་གུག་མགོ་གཉིས་པ་), which is less common, longer, and curved with hooks at both ends, comparable to the diamond Kartika held by Vajrapani.