insight (someone) never had

Translations
понимание, которого (кто-то) никогда не имел
After reading the book, he had an insight he never had before about the subject.
Прочитав книгу, он получил понимание, которого у него никогда не было по этой теме.
Definitions
A new understanding, realization, or perspective that a person has not previously experienced or considered.
Words
insight

noun
понимание
have

verb
иметь
never

adverb
никогда