Conversation so far:
What is Tara's primary role?
Throughout season 4, Tara acts as a partner and guide in Willow's witchcraft, teaching Willow spells and performing magic together.
Do they form a relationship?
Tara's primary role throughout the series is that of Willow's partner.
Does Tara get Willow into magic?
When Tara and Willow meet, their proficiency at magic is about the same, but Tara's knowledge of the craft far exceeds Willow's.
What keeps them grounded on use of magic?
CANNOTANSWER.

Question: Does Tara have any doubts about magic?
Self-contained rewrite: Does Tara have any doubts about magic?