My child, I will tell you how to become my instrument.
Can the shovel say to the builder that it took part in the work of laying the foundations for a beautiful castle and that it deserves some credit? Can a hammer tell the carpenter that it worked very hard and that it deserves its reward when the house is finished?
Can you then help in the conversion of another person by your prayers or deeds and claim some credit for yourself? Can you see?, that the instrument is really worthless unless it is used by the craftsman and that if you do some work for me you should not partake of any of the praise that is due to God because after all it is I the One who builds and if you claim any credit now, you are really working for yourself and not for me. Therefore I deserve all the praise and the Glory. As for you my instrument, you are doing what you are supposed to do, let the reward come when the time is right and trust in me. I am the Just Master, I will repay everyone very well.