It's a paradox, too, that there could be so much emphasis on connectedness with others while at the same time the personal, individualized experience of the "inner life". But the Bible, and most religious texts, seem critical of hyperindividualism, excessive introversion or self-satisfaction. It's dangerous to think you don't need others.
While on the topic of older religious books, I have my father's old copy of "The Story of the Bible" by Hendrik Willem Van Loon, published by Garden City in 1936. The book was distinguished by its clever hand drawings that look like wood-cuts. The author refers to God as "Jehovah" and the Israelites as "The Jews" and makes a lot of their tribal value system, while emphasizing that they were obscure in the ancient world before the time of Christ.