(You can read post one here - On the danger of reading Christian literature over the Bible.)
(You can read post two here - On why we need to have private devotions.)
(You can read a brief biograpy of George Muller here.)
May 7, 1841 (36 years old). The most important thing I had to do was to read the Word of God and to meditate on it. Thus my heart might be comforted, encouraged, warned, reproved, and instructed.
Formerly, when I rose, I began to pray as soon as possible. But I often spent a quarter of an hour to an hour on my knees struggling to pray while my mind wandered. Now I rarely have this problem. As my heart is nourished by the truth of the Word, I am brought into true fellowship with God. I speak to my Father and to my Friend (although I am unworthy) about the things that He has brought before me in His precious Word.
It often astonishes me that I did not see the importance of meditation upon Scripture earlier in my Christian life. As the outward man is not fit for work for any length of time unless he eats, so it is with the inner man. What is the food for the inner man? Not prayer, but the Word of God—not the simple reading of the Word of God, so that it only passes through our minds, just as water runs through a pipe. No, we must consider what we read, ponder over it, and apply it to our hearts.
When we pray, we speak to God. This exercise of the soul can be best performed after the inner man has been nourished by meditation on the Word of God. Through His Word, our Father speaks to us, encourages us, comforts us, instructs us, humbles us, and reproves us. We may profitably meditate, with God’s blessing, although we are spiritually weak. The weaker we are, the more meditation we need to strengthen our inner man. Meditation on God’s Word has given me the help and strength to pass peacefully through deep trials. What a difference there is when the soul is refreshed in fellowship with God early in the morning! Without spiritual preparation, the service, the trials, and the temptations of the day can be overwhelming. (Autobiography, 139)