Ashtama Siddhis, which is believed to confer eight kinds of devises and super natural powers on those who have achieved it.

Anima -- Power of becoming the size of an atom and entering the smallest beings.
Mahima -- Power of becoming mighty and co-extensive with the universe.
Lagima -- Capacity to be quite light though big in size.
Garima -- Capacity to weigh heavy, though seemingly small size.
Prapthi -- Capacity to enter all the worlds from Brahma Loga to the neither world.
Prakasysm -- Power of disembodying and entering into other bodies (metempsychosis) and going to heaven and enjoying what everyone aspires for, simply from where he stays.
Isithavam -- Have the creative power of God and control over the Sun, the moon and the elements and
Vasithavam -- Power of control over King and Gods.