One answer will cover all your questions: Turn to God and fill your consciousness with the realization of His perfection. Let your weakness be dissolved in the worshipful thought of His strength. It is not necessary to explain things to God, for He knoweth your need before you speak, and is more ready to give than you are to ask. When you meditate, turn away from everything except the one absorbing thought of His overshadowing Presence. In this way you will become receptive, and healing will flow through body, mind and soul.
"God Alone: The Life and Letters of a Saint"