Question: Why is it so difficult to keep the intention?
Answer: It is because in the right intention, our desire to enjoy immediately reaches correction. If, even for a moment, you thought with the right intention, then you corrected the desire that occurred inside of you at that moment, and it would be replaced with a new one, an uncorrected one. And now, once again, you need to imagine the unified group of all of the friends as one whole.
If you do so and aspire towards the Light that Reforms in order to reveal the quality of bestowal a little bit inside that state, then it means that you have once again corrected your desire and it changed once again. It turns out, that every time when you get disconnected, it means that you are not disconnected and getting further apart, but that the desires are changing inside of you and this is how you move forward!
From the 2nd part of the Daily Kabbalah Lesson 8/28/12, The Zohar