One's perception of folk legends we translated (4-9)
I believe the answer is:
self-knowledge
'one's perception' is the definition.
The answer and definition can be both related to thinking as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
'folk legends we translated' is the wordplay.
'translated' indicates anagramming the letters.
'folk'+'legends'+'we'='folklegendswe'
'folklegendswe' with letters rearranged gives 'SELF-KNOWLEDGE'.
'of' is the link.
Can you help me to learn more?
(Other definitions for self-knowledge that I've seen before include "Awareness of one's own personality" , "Understanding of one's own abilities" , "Awareness of one's own motives" , "Quality prescribed by Delphic oracle etc" .)