Read The Concise Oxford Dictionary of World Religions Online
Authors: John Bowker
(i)
samdhi
or concentration,
(ii)
sdhana
or practice,
(iii)
vibhti
or magical powers, and
(iv)
kaivalya
, the condition of isolation or freedom. The
Stra
is a systematic exposition of the theory and practice of eight-limbed (
aga
) or
rja
yoga.