Answer:
If a small kid comes to doctor, tell her/his complaints and ask a certain drug from the doctor. Sometimes, Doctor check the complaints and thinks that the drug the child asked was not good for her/his complaints. Nevertheless, the doctor listens to the child very carefully, shows his/her empathy to the child and give the correct drug... It is very similar to this for us. He always listens to us. If thing we asked is good both for us and other people related to that event , He gives us it in this world. And if not, He gives bigger and better rewards in hereafter; because you applied to Him, because you knew that He is the only that can give us our wishes (when appropriate in this world). This knowledge makes us very valuable before God.