One weekend I had my grandchildren at our home. Early in the morning one of them started crying. Immediately I went to their room to check on them.
I felt Father speak to me: Do you not think that I have ears that are much stronger and more accurate than yours. Every time you cry I HEAR!
In the New Testament it says that if we know that He hears us that we can know that we have obtained the request that we have asked of Him.