A. W. Tozer 
The Pursuit of God [EPUB ebook] 

Tozer’s bestseller, this book has been called 'one of the all-time most inspirational books’ by a panel of Christian magazine writers.
Sometimes the voices that speak most clearly in the present are those that echo from the past. So it is in this Christian classic by the late pastor and evangelist A. W. Tozer.
Tozer brings the mystics to bear on modern spirituality, grieving the hustle and bustle and calling for a slow, steady gaze upon God. With prophetic vigor and flowing prose, he urges us to replace low thoughts of God with lofty ones, to quiet our lives so we can know God’s presence. He reminds us that life apart from God is really no life at all.