Portal:Vajrayana Buddhism/Selected article/5
Mahasiddha (Tibetan: གྲུབ་ཐོབ་ཆེན་པོ, Wylie: grub thob chen po; or Tibetan: ཏུལ་ཤུག, Wylie: tul shug; Sanskrit Devanagari: महासिद्ध; IAST: mahāsiddha, maha meaning "great" and siddha meaning "adept") is a term for someone who embodies and cultivates the "siddhi of perfection." They are a certain type of yogin/yogini recognized in Vajrayana Buddhism.
A siddha is an individual who, through the practice of sadhana, attains the realization of siddhis, psychic and spiritual abilities and powers. Their historical influence throughout the Indic and Himalayan region was vast and they reached mythic proportions which is codified in their songs of realization and hagiographies, or namthar, many of which have been preserved in the Tibetan Buddhist canon.