Speak even without heart, always start new
Even though it seems to the person that he is speaking without heart, even still this is very good. And when he speaks so, abundant words, through this he will usually merit that his heart will be aroused to speak with an impassioned heart befittingly, because speech has a great power to arouse a person. And even if many days and years pass, and it appears to him that he still has not accomplished anything with his words and conversing, even still he shouldn’t fall from this at all, because certainly the words make an impression. An allegory for this: Like water coming down on a stone, even though it would seem that the water doesn't have power against the hard stone, and the water has no apparent impression in the stone, even still, when the water comes down on the stone many, many times consecutively, they bore a whole in the stone, as can be seen outright. Similarly, even if one's heart is a heart of stone, and shows no sign of his words and his prayers, even still with the accumulation of days and years his heart of stone will be pierced through his conversing and his words, like (Job 14:19), “stones withered by water,” as mentioned above. (Words of Rabbi Nachman, article 234, Outpouring of the Soul 37) And it is good for a person to say during hisbodidus, “Today I begin to bind (divaikus) to You.” And every time he should initiate a beginning, because all continuations follow after the beginnings. Like they say: the beginning is paramount to half of the phenomenon of the entire process. Consequently, either way he should make a new start every time, and he should say as mentioned above, for either way (mima nafshuch); if it was good before – now it will be better, and if Heaven forbid beforehand it was not good – certainly it is necessary and incumbent to launch a new beginning, as mentioned above. (The Life of Rabbi Nachman, article 437; Outpouring of the Soul 45)