1 Peter 2

" as newborn babes, desire the pure milk of the word, that you may grow thereby,  if indeed you have tasted that the Lord is gracious." vv.2-3

Read chapter 2
All babies need and want for the first few months of their lives are milk, whether from the breast or formula, and this goes on for many months or years slowly adding or substituting harder foods.  There have been 8 babies born in the past 10 months in the small community of 150 people where I live.   All of them are breast fed and can be an easy or hard thing for both the mom and the baby.  But all of them have learned the best and most comfortable way to get and give the nutrition they desire and need.  
So to us and the pure milk of God's Word.  We shouldn't  start getting know God and His ways by reading other books and studies about Him but by His pure word, His pure truth.  This is also something our souls crave and most of us don't realize that's what we're craving, time in God's Word and soaking in His truth.  Once you have a taste of Him you can't help but crave more.  Taste and see that the Lord is good!