If you were to look through a large telescope, or even one of these smaller spy-glasses, you would immediately discover that when you desire to look at objects at different distances, or in different degrees of light and shade, you would have to constantly adjust the telescope or spy-glass to these different conditions. If you would look at objects which are near, and then turn the spy-glass to look at those which are distant, you would not be able to see distinctly until you had adjusted the lenses to suit the distance. With our eyes the same adjustment has to be made, and yet it is done so quickly and without any conscious effort upon our part, that it seems as if it were not done at all. When we look at an object which is only a few inches from our face, and then turn and look at a distant object, instantly our eyes are adjusted to the difference of distance and varying degrees of light and shade. But what makes this all still more wonderful is the fact that we have two telescopes, two eyes instead of one. Both of these little eye-telescopes instantly adjust themselves, and both adjust themselves to precisely the same necessity. If they adjusted themselves differently we would see two objects instead of one; the same as a drunken man who has lost the use of his muscles and faculties, whose eyes do not work in harmony, and therefore, instead of seeing only one object, he sees two objects and sees them in a confused way. Did you ever think how wonderful it is that when you close your right eye, and look at something with your left eye, that you can see the object distinctly? Now, if you close the left eye, and look at the object with the right eye, you again see the same object distinctly. When you open both eyes and look at the same object, instead of seeing the object twice, or seeing two objects, you see only one object. That is because the eyes work in such perfect harmony, and that is what the Scripture means when it says that you and I should "see eye to eye" in everything that is good. Now there is another thing to which I desire to call your attention, and that is the size of the eye. If you owned one of these very large telescopes which cost hundreds of thousands of dollars, you would be regarded as a very wealthy person, but you could not carry that telescope with you from one place to another. It would be of no service to you in looking upon the beautiful scenes which surround you from day to day. If you wanted to use the telescope you would have to stay where the telescope was, instead of taking the telescope with you where you desired to go. But God has made these little eye-telescopes so perfect, and yet so compact and small, that wherever we go, on land or sea, we can take them with us, and they can be in constant use and give us the most perfect delight and satisfaction.