A little story......
A recent arrival in heaven met St.Peter who showed him around. The two of them passed a number of large buildings full of angels. St.Peter stopped in front of one of them and said to the newcomer, "this is the section for receiving and answering prayers of petition." In this building there seemed to be thousands of angels opening, classifying and answering the enormous volume of petitions which kept being left at the reception area. They then went past a corner and came to a small building something like a rural post office. To his surprise there was only one angel working in this building and didn't seem to have much to do. "This is the section where we receive the prayers of thanksgiving," said St.Peter. "How is it that there is so little work here?" said the newcomer. "You would hardly believe it," Peter replied, "but the percentage of those whose prayers and petitions are answered either forget or never bother to thank God!"