I found this in an old note book of mine. It was something which I said in a sermon about the first step in converting our neighbors and the world was in being as completely open as we were able to ourselves being converted to the fullness of the Christian faith.
"The Book of Common Prayer is a real school of Practical Christianity: it teaches the Catholic Faith, provides Orthodox Worship, contains Apostolic Order and it is true Evangelical Witness."
It is as simple as that and as complex and mystical. It embodies the via media. Like the Benedictine Rule it is neither too severe nor too lax, but it always - if we will but permit it - leads us to Jesus as Risen Saviour and Lord.