W.I.T.C.H., Season 2

Taranee:
[voiceover] The Ancient Sages described it as exactly [shot of Nerissa summoning Quintessence from lightning] like electricity. They believed it could be found in lightning, but [Nerissa shoots a lightning bolt at the ground] they also called it "the stuff of life", like bio-electricity. [Farm men charge at Nerissa.] [Back to the girls]

Taranee:
Quintessence has the power to make things come alive.

Hay Lin:
Kinda like Doctor Frankenstein!

Will:
Kinda like me. Throwing lightning bolts, talking toasters. My powers sound exactly like Quintessence.

Cornelia:
The fifth Guardian gets the fifth element. Makes sense.