Assuming that this was part of the rebbe's unique way of serving Hashem, the chassid immediately ran home to try it himself. This pasuk may be interpreted allegorically to warn that if one observes his teacher only when the latter's holiness is hidden within him, such a person may die a spiritual death rather than find the spiritual elevation which he seeks. Sukkot falls at the end of the harvest, when the same Jew celebrates the success of his harvest season. Shavuot expects us to understand on our own. Those who are close to the ideals that Shavuot represents do understand the holiday on their own.
Kabbalists teach that each month of the year corresponds to a major body part.
This month, Sivan, corresponds to the left ear. However, when the Torah is given, we must use both ears, even the left one. One should know that this feeling comes from the fact that the soul wants to soar and to encompass everything. The soul does not want to be limited in any way. Of course one must deal with this feeling, which, after all, prevents a person from learning.