When knowledge combines with hard work, then Riddhi meaning wealth and Siddhi meaning success are attained. It is said in Sanskrit, that: 'Gyānam bhārah kriyam vinā', meaning, 'Knowledge, unless utilised is a burden.
Riddhi or Siddhi, also called 'Riddhi-Siddhi', refers to a supernatural power that can be harnessed and controlled by a person. This is theorized by various sects, usually Shaivism, Shaktism, [Tantric] Buddhism (Vajrayana), and Jainism.
According to Shaiva and Shakti yogins, many of yogis attained this energies.
According to the Jain Tiloyapannatti and Adipurana, there are 7 kinds: