When you first begin this procedure, expect to face some difficulties. Your mind will wander off constantly, darting around like a bumblebee and zooming off on wild tangents. Try not to worry. The monkey-mind phenomenon is well known. It is something that every seasoned meditator has had to deal with. They have pushed through it one way or another, and so can you. When it happens, just note the fact that you have been thinking, daydreaming, worrying, or whatever. Gently, but firmly, without getting upset or judging yourself for straying, simply return to the simple physical sensation of the breath. Then do it again the next time, and again, and again, and again. Somewhere in this process, you will come face to face with the sudden and shocking realization that you are completely crazy. Your mind is a shrieking, gibbering madhouse on wheels barreling pell-mell down the hill, utterly out of control and helpless. No problem. You are not crazier than you were yesterday. It has always been this way, and you just never noticed. You are also no crazier than everybody else around you. The only real difference is that you have confronted the situation; they have not. So they still feel relatively comfortable. That does not mean that they are better off. Ignorance may be bliss, but it does not lead to liberation. So don't let this realization unsettle you. It is a milestone actually, a sign of real progress. The very fact that you have looked at the problem straight in the eye means that you are on your way up and out of it.