Prayer is easy only for beginners and for those who are already Saints. During all the long years in between, it is difficult. Why? Because prayer has the same inner dynamics as love, and love is sweet only in its initial stage, when we first fall in love, and again in its final, mature stage. In between, love is hard work, dogged fidelity, and needs willful commitment beyond what is normally provided by our emotions and our imagination.
It's when I say, "I don't know how to love," and, "I don't know how to pray," that I first begin to understand what love and prayer actually are.
The word "humility" (also "human") is derived from the Latin "humus," meaning "the soil." Perhaps this is not simply because it entails stooping and returning to earthly origins, but also because, as we are rooted in this earth of everyday life, we find in it all the vitality and fertility unnoticed by people who mostly tramp on across the surface, drawn by distant landscapes.