What Is Siddhasana? The word ‘siddha’ exactly means “the secret mysterious powers”. ‘Asana’ means “pose”, therefore when joining together; siddhasanamean “pose for revealing secret powers”.  Nāsanam siddhasadrśam – (Hatha Pradipika 1/45) There is no Asana like the Siddhasana. In hatha yoga texts, siddhasana is considered to be the best asana. It is superior to all asanas. Its method of practice is described below.