We are required to do two opposites, to be fully engaged present with our full self, when it comes to learning Torah, however at certain times we have to have the ultimate humility, for example when it comes to davening, asking a Halacha or a way of serving Hashem regardless how great you are, that was the error of Nadav and Avihu they were on such a high level and yet did an unauthorized service in front of Moshe. לקו״ש יב