"Nothing pleads on your behalf like extreme need." quote by Ibn Ata'Allah [Source: Lessons of the Day blog]
Look in your life and see if the above quote applies to you. If your first inclination is to respond, 'no', I beseech you, look closer. And maybe ask yourself how you define extreme need (in comparison to those around you), and if what you want is in line with Islamic beliefs.
The condition for your prayer to be accepted is that you acknowledge that Allah (سبحانه وتعالى) is the only One who can help you. We may be tempted to look around and try to help ourselves without asking for Allah's. This is futile, as Allah (سبحانه وتعالى) will decide whether you'll get help or not, and He may actually make your problem persist until you acknowledge the fact that you are in extreme need of His help (I have seen people blame Allah for their problems, when in fact they are to be blamed since they didn't ask for His help!).
There are dozens of instances in my life when I realized that if Allah (سبحانه وتعالى) did not help me, I would experience extreme discomfort or be in danger. It is in those moments that the truth of the above quote became evident.
I would very much like to hear your experiences regarding instances when this quote proved true in your life.