any book of which we say to ourselves when we have done with it, tat is a good book, we find to be so by means of the personality with which we have been in contact.

이 문장이 당체 이해가 되지 않습니다,,,, 앞에 which가 무엇을 받는지도 이해가 되지 않구요....문장 구조가 전혀 눈에 들어오지 않습니다. 그리고 문장이 연결되어 잇는것도 어떤 접속사에 의해 연결되어잇는지도 모르겟구요..
완전 멘붕 상태입니다...어떻게 좀 붐석좀 하실수 있으신지,...조심스레 부탁드려 봅니다..
넘 어렵네요...

참고로 문제집에 잇는 지문 그대로 쳐서 올립니다..

there is one thing which we do every time we read, whether we are aware of it or not: we come into contact with the personality of the writer. we enlarge our acquaintance, and by doing so we enter farther into life. however little we may mean to, we enlarge our own personality, at least if the writer whose book we are reading possesses a personality of any value at all. any book of which we say to ourselves when we have done with it, tat is a good book, we find to be so by means of the personality with which we have been in contact.

문제지는 아우라 어법 어휘편에 79번입니다...