Siddhi (T. dngos grub དངོས་གྲུབ་; C. xidi/chengjiu 悉地/成就) is a special power or ability attained through tantric practice, commonly as a result of deity or mantra practices. The Sanskrit term siddhi is translated at "spiritual accomplishment," "accomplishment," "attainment," etc.
There are two types of siddhis:
- the mundane siddhis are supernatural powers, which a bodhisattva may use to benefit beings.
- the supreme siddhi is enlightenment (bodhi) itself. This is the principal goal of spiritual practice.
The mundane siddhis are similar in kind to those acquired by the practitioners of some non-Buddhist traditions, and are not regarded as ends in themselves. When they arise, however, they are taken as signs of progress on the path and are employed for the benefit of the teachings and disciples.
- spiritual accomplishment
- Robert E. Buswell Jr., Donald S. Lopez Jr., The Princeton Dictionary of Buddhism (Princeton: 2014), s.v. siddhi
- Rinpoche, Dudjom; Jigdrel Yeshe Dorje. A Torch Lighting the Way to Freedom (glossary, p. 313). Shambhala.
- Jigme Lingpa, Treasury of Precious Qualities, translated by Padmakara Translation Group, from the glossary.