In the love which any intelligent creature feels for God there must always be a measure of mystery. It is even possible that it is almost wholly mystery, and that our attempt to find reasons is merely a rationalizing of a love already mysteriously present in the heart as a result of some secret operation of the Spirit within us, "working like a miner, toiling unseen in the depths of the earth? (Fenelon). But so far as reasons can be given, they would seem to be two: gratitude and excellence. To love God because He has been good to us is one of the most reasonable things possible. The love which arises from the consideration of His kindness to us is valid and altogether acceptable to Him. It is nevertheless a lower degree of love, being less selfless than that love which springs from an appreciation of what God is in Himself apart from His gifts. Thus the simple love which arises from gratitude, when expressed in any act or conscious utterance, is undoubtedly worship. But the quality of our worship is stepped up as we move away from the thought of what God has done for us and nearer the thought of the excellence of His holy nature. This leads us to admiration.