It's a good idea to check for recurring to understand how they affect the overall of the text.

what goes in those blanks?

The two words are

Explanation:

A Motif is an element which reoccurs frequently througout a text or art work that is central it.

A theme in literature is simply the big idea, central message or underlying message of a lieteray work.

Thus, fixing the words into the sentence we have:

It's a good idea to check for recurring motifs to understand how they affect the overall theme of the text.

Cheers!

you have to either add a photo or put them answers in with the questions