Rabash Letter No. 57: “I did not tell you this truth but in order that you will not leave and not despair from mercy. And although you don’t see anything, even at time that the measure of efforts is complete, this is the time of prayer.”
Question: Is prayer a part of the effort or does it come separately?
Answer: Prayer is the result of all efforts. When you give a complete effort and the measure is complete, then the prayer is born. You need to do all that is in your hands and strength, and after that you will understand that only the Creator is able to implement His plan. And then you will turn to Him!
Question: What does it mean, to finish your measurement of effort?
Answer: It means to finish all kinds of attempts to connect with friends in order to bestow to the Creator. And you despair from truly not attaining the real quality of bestowal, and then you burst with a prayer.
In the beginning you just hear that it is good to come to bestowal, but you need to come to a state that you want to be the one that bestows; you beg for bestowal, as if you can’t live without it.
You can’t measure your vessel, and judging by the fact that is is empty, you decide you have finished your measurement of effort. From a state that is forced on you bursts a prayer, for which you immediately receive an answer, then the change happens. According to these changes you understand that you finished the measure of effort.
The prayer comes after man checks himself and sees that it is impossible to change something by himself; rather, everything is in the hands of the Creator. And this brings him to adhesion with the Creator.
You are not required to create this prayer artificially. But naturally from inside of you will burst your cry, which will be your prayer. Prayer is the work of the heart.
From the 1st part of the Daily Kabbalah Lesson 11/26/14, Writings of Baal HaSulam