A good book may be spiritual food, if it s edifying or inspiring or satisfying to our heart. There are some wonderfully inspiring books available. Of course, when it comes to books, the Holy Bible is real meat. It is spiritual nectar. Regarding the Holy Scriptures, there is a wonderful prayer from the old Missouri Synod hymnal that I grew up with, that goes, Grant, Lord, that we may. . .
Daily devotions are a wonderful spiritual food also, and are best taken at a regular time each day.
Even to sit in a beautiful garden and drink in the beauty of the flora and hear the birds singing it can be very refreshing, spiritually. That s what priests were originally relied upon to do. Martin Luther thought Confession and Absolution was so important that he called it the Third Sacrament . Of course, our main spiritual meal of the week ought to be Sunday worship. A good worship service ought to contain both the sacrificial and the sacramental.