The Sarvabuddhasamayoga Tantra is one of the earliest sources to provide the etymology 'sky-goer' for the word ḍākinī: "Here the root is understood to be ḍai, which expresses going in the sky; a 'ḍākinī' is known as the power (siddhi) of moving everywhere through space."
Dodrupchen Jikme Tenpe Nyima explains:
- In the Nyingma tradition they commonly talk about the karmic, wisdom, and worldly dakinis, and in the Sarma tradition about pureland, mantra, and innate dakinis, but this is merely a difference in terminology.
- Sarvabuddhasamāyogatantra, i.9. See also Ratnakāraśānti, Guṇavatī, NGMCP C 25-7, 1v.7; Sampuṭatantra, I.iii.9cd-10ab. There are many variant readings of this verse; the above is based on the following text: ḍai vihāyagamane dhātur atra vikalpitaḥ | sarvākāśacarā siddhir ḍākinīti prasidhyati |
- Source needed