Question

In one of your excellent articles you wrote:
“I once heard in the name of Rabbi Shagar that there is a problem for the average student in hesder yeshivot with the concept of ‘halot’ (legal/effective status). Everyone knows what ‘a married woman’ is, but there is a problem with the question of what the ‘halot of a married woman’ is (in the Haredi yeshiva world: haloyes, with a holam (?)).
On the other hand, Rabbi Shagar went on to argue, in the Haredi yeshiva world they do manage with concepts of ‘halot,’ but it is a kind of ‘recitation’ of a concept that is vague for them too. They also cannot define the concept of ‘halot’ well, and only the avoidance of a precise definition is what helps them get along with it. That is, this kind of ‘understanding’ often testifies to the inferiority of the Haredi learner and not to his advantage, since he does not trouble himself to clarify concepts for himself all the way through, and in practice he merely ‘recites’ them out of habit.”
 
Could you please tell me the source of Rabbi Shagar’s statement? And more generally, have you ever written about how sometimes a lack of clarity and explanation indicates a lack of understanding?