Please ignore narrow, religious thinking on the subject of how the Lord speaks to us. He still calls to us through the Holy Spirit. He speaks to us through the Word, but also directly...as He has done (and continues to do).
Be VERY careful if you read this devotion. Jesus speaks to us through His word and not that of a human author. Sarah Young is writing in the first person. Seriously? If you want true comfort, read God's Word and not this book.