You don’t need to fly to the skies but you need be ready to. Once that drive is in place, nothing can stop you.
No matter what a person’s natural capacity and life circumstances, if he sets his goal as the attainment of Torah, Hashem will help so that he can reach the stars. Is the journey difficult? While there are many challenges along the way, the ways of the Torah are pleasant, and a Jew has unique aptitude to absorb it. The only difficult part is setting our sights high enough and holding the course. If a person sets out with a drive to do whatever it takes, even if it means “flying to the heavens,” Hashem helps – and that person can reach his personal level of greatness on par with that of the most exalted Torah giants.