The inner life of another that is know to God alone becomes to a much less degree open to to us through friendship. It partially fills the desire of our incomplete, lonely hearts for completeness in another. Friendship brings out the best part in a person through forgetfulness of self.

The Marvelous Power Of The Cross | Pope Leo The Great
Our understanding, which is enlightened by the Spirit of truth, should receive with purity and freedom of heart the glory of the cross as it shines in heaven and on earth. It should see with inner vision the meaning of the Lord's words when he spoke of the imminence...