The Sanskrit term Upahṛdayamantra can be transliterated into English as Upahrdayamantra or Upahridayamantra, using the IAST transliteration scheme (?).

In Buddhism

Tibetan Buddhism (Vajrayana or tantric Buddhism)

Source: academia.edu: A Critical Sanskrit Edition and a Translation of Kambala’s Sādhananidhi, Chapter 8

Upahṛdayamantra (उपहृदयमन्त्र) refers to the “quasi-heart mantra of Heruka”, and represents one of the four major mantras in the Cakrasaṃvara tradition, as taught in the eighth chapter of the 9th-century Herukābhidhāna and its commentary, the Sādhananidhi.  The Upahṛdaya-mantra consists of seven letters.

The mantra is as follows: “oṃ hrīḥ ha ha hūṃ hūṃ phaṭ”.

The seven associated deities are:

1. Vajraḍāka, alias Heruka, and his consort Vārāhī (hūṃ), who reside at the center;
2. Herukī (phaṭ),
3. Vajrabhairavī (hūṃ),
4. Ghoracaṇḍī (ha),
5. Vajrabhāskarī (ha),
6. Vajraraudrī (hrīḥ),
7. Vajraḍākinī (oṃ), who reside around Vajraḍāka and Vārāhī.

The purity of these seven deities is the Seven Limbs of Enlightenment (bodhyaṅga).

context information

Tibetan Buddhism includes schools such as Nyingma, Kadampa, Kagyu and Gelug. Their primary canon of literature is divided in two broad categories: The Kangyur, which consists of Buddha’s words, and the Tengyur, which includes commentaries from various sources. Esotericism and tantra techniques (vajrayāna) are collected indepently.

See also (Relevant definitions)

Partial matches: Upahridaya, Mantra.

Full-text: Vajraraudri, Heruki, Vajradaka, Vajrabhaskari, Vajrabhairavi, Ghoracandi, Vajradakini.

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