I've also posted some favorite quotes from favorite mentors of mine regarding why I believe this emphases is so critical:
"Be sure that the ins and outs of your individuality are no mystery to Him; and one day they will no longer be a mystery to you." – CS Lewis
"God and the soul, I desire to know. Nothing more? Nothing whatever." – Augustine of Hippo
"The central point of the kingdom of Jesus Christ is a personal relationship with Him, not public usefulness to others." – Oswald Chambers
"Our wisdom, in so far as it ought to be deemed true and solid Wisdom, consists almost entirely of two parts: the knowledge of God and of ourselves." – John Calvin
"Is it not true that for most of us who call ourselves Christians there is no real experience? We have substituted theological ideas for an arresting encounter; we are full of religious notions, but our great weakness is that for our hearts there is no one there." – A.W. Tozer
"Our wisdom, in so far as it ought to be deemed true and solid Wisdom, consists almost entirely of two parts: the knowledge of God and of ourselves." – John Calvin