Infinity is a measurement beyond comprehension. God's desire to provide for us, to meet our requests, to supply our needs, and to protect us from harm is so far beyond our comprehension that it helps to think in terms of the father-child metaphor. If an earthly father would be willing to give good gifts to a beloved child HOW MUCH MORE our Heavenly Father? Not only is God willing, He has the resources and means to supply us with rich blessings beyond what we could even think to ask. He can absolutely give us everything we need and many things we want, but the key to a successful prayer life is what Andrew Murray calls "the child-life." When we see ourselves as needy children and experience the infinite Father-love of God in that place; when we remember who we are and who He is, in that way; when we choose to live and walk with God as our kind and loving Father, not just when we want things from Him but simply as the natural course of life; imagine what that does for our healing. Imagine how it grows our faith in Him! As children, we have a RIGHT to boldly (and humbly) approach Almighty God to petition Him for the things we need. As Father, God has pledged to fulfill His promises to us, to give us His holiness, His wisdom, His love, joy, peace, and many, many other good gifts. So ask. So seek. So knock.