Last week was the birthday of the Rebbe Shalom Dov Ber of Lubavitch, the 5th Rebbe of the dynasty. He's known by the commonly used acronym of his name "Rashab".
In a discourse on last week's Torah portion he quoted a Midrash which stated that three people had their prayers responded to immediately: Eliezer (Abraham's servant) when seeking a wife for Isaac, Moses when asking the earth to swallow Korah and Solomon when praying for a fire to descend on the altar of his newly built Temple. Of the three, Eliezer's prayer was responded to fastest - even before he finished praying.
Rebbe Shalom Dov Ber asks why did he have this merit, when spiritually speaking he ranked lower than the other two in saintliness? The digest version of the answer is that swift response did not occur on Eliezer's own merit, but only because he was on a mission to help Isaac (find a wife). So in reality God was responding swiftly to Isaac, who certainly was in a comparable spiritual ranking with Moses and Solomon.
I learned a lesson from this teaching. Dedicating one's actions to help those whom God favors might open up special and unexpected doors.