There are serious obstacles to the smooth flow between head and heart.
One can admit that something is good and beautiful, and yet fail to see that it relates to oneself in any way.
Desire is a universal, nonpersonal, phenomenon. Hunger and lust are common to all men.
There has to be a certain differentiation, a particularization and defining before a person can say, "I want this."
In short, there is a great distance to be traversed before speech expresses thought and takes on meaning.
It is not a simple, mechanical translation.
There are any number of inner communication factors between the Sefirot, such as those between Chochmah and Binah, that can effect a transmutation.
For these varied paths, generally unnoticed by consciousness, determine the content and the quality of the inner life and, subsequently, of thought.
And at every stage, there is a certain addition or processing, an infusion of something new.
–Rabbi Adin Steinsaltz
From The Long Shorter Way by Rabbi Adin Steinsaltz