Shakti and Bhakti
Shakti is the primordial cosmic energy and represents the dynamic forces that are thought to move through the entire universe. Shakti is the personification of the Energy that is creative, sustaining, as well as destructive, sometimes referred to as "The Great Divine Mother" in Hinduism. Also known as Mahaamaya (The Greatest Delusion), it is just a metaphor of energy, which no layman or scientist has ever been able to decipher - we see energy in all forms all around us.
Shakti is worshipped as the Supreme Being. Shakti embodies the active dynamic energy of Shiva (as Devi/Shivaa/Shive) and is synonymously identified with Tripura Sundari or Parvati.