I don't like the phrase, "If God closes a door, he opens a window." It should say "If God closes a window, he opens a door". As human beings, we tend to concentrate on the smaller "windows" in our life. We don't see the big picture. But God does. God doesn't live in the past, present OR future. He IS!! He is completely outside of time. He can coordinate OUR past, present, AND future into one seamless and perfect plan.
If you feel like God has let a "window" of opportunity close for you, just remember that God lives outside that room. He sees all the windows, doors, and everything else. All you need to do is turn around, stop focusing on that particular window, and call out to God to ask him in which direction he is leading you. It's probably not to some poor, pitiful little window. He probably has a nice, shiny, double-entry set of French doors he is waiting to throw open for you.
"Thank you, Lord for this particular window that you closed at this time. That is a sure sign that you have even greater things in store. Please help me to be strong and depend on you in all things. Help me to yearn for things not in this life, but beyond. Keep my eyes, heart, and mind focused on you, Lord."
**Jeremiah 29:11, "For I know the plans I have for you," declares the LORD, "plans to prosper you and not to harm you, plans to give you hope and a future."