The best place to hide something is in plain sight. In this case of this picture, its a dog. And once you see him (her) you will know that being hidden is a form of play, after all- just look at the expression on his face!
Consider the following...
Ephesians, Chapter 3 (World English Bible)
1 For this cause I, Paul, am the prisoner of Christ Jesus on behalf of you Gentiles, 2 if it is so that you have heard of the administration of that grace of God which was given me toward you, 3 how that by revelation the mystery was made known to me, as I wrote before in few words, 4 by which, when you read, you can perceive my understanding in the mystery of Christ, 5 which in other generations was not made known to the children of men, as it has now been revealed to his holy apostles and prophets in the Spirit, 6 that the Gentiles are fellow heirs and fellow members of the body, and fellow partakers of his promise in Christ Jesus through the Good News, (emp. added vss. 3-6) 7 of which I was made a servant according to the gift of that grace of God which was given me according to the working of his power. 8 To me, the very least of all saints, was this grace given, to preach to the Gentiles the unsearchable riches of Christ, 9 and to make all men see what is the administration of the mystery which for ages has been hidden in God, who created all things through Jesus Christ, 10 to the intent that now through the assembly the manifold wisdom of God might be made known to the principalities and the powers in the heavenly places, 11 according to the eternal purpose which he accomplished in Christ Jesus our Lord. 12 In him we have boldness and access in confidence through our faith in him.
God is eternal and works over the ages to accomplish HIS will. We are limited to 100+ years at the very most, so we don't see things the way God does.
But, when God does reveal his will, he uses ordinary human beings to do it. He used Paul and He uses the church to reveal the truth. Personally, I like the idea, because using human beings to tell other other human beings God's will is a very personal way of doing it.
Humm, anyone interested in a game of hide n' seek???