That one little word is one of the most thought about, discussed, wished for words in the world, and it can't even happen! Besides, if it could be, remember this: that one little word would change your entire life! Change one little thing about your life, and your entire life changes! As I said to my friend, "If you never got married, you wouldn't have that wonderful daughter you always speak of with such pride and joy. You would not have met me!"
I don't know why things happen in life. I used to say it was God's will. That I'm not so sure of anymore, but this I am sure: things happen in our lives for a reason. We are put in a situation and in contact with certain people at a specific time, for a specific reason. I have met many people throughout my life who made a difference for me, and I hope there are people I've met that I have made things just a little better for. Life is in constant motion, and we are pieces moved on a chess board.
So instead of wondering, "what IF," be thankful and appreciate what HAS happened in your life. For IF could alter all.