This is the RYI Dictionary content as presented on the site http://rywiki.tsadra.org/, which is being changed fundamentally and will become hard to use within the GoldenDict application. If you are using GoldenDict, please either download and import the rydic2003 file from DigitalTibetan.
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Siddhi of Mahamudra. Same as enlightenment. In the context of Mahayoga Tantra, it can also refer to the attainment of the third vidyadhara level in which 'Mahamudra' means the sublime body of the yidam deity [RY]