It’s fascinating how Maaseh Merkava — one of the deepest, most esoteric sections of Torah — is read on Shavuos morning, precisely when the entire shul is exhausted from staying up all night. By contrast, Maaseh Bereishis — the foundation of creation — is read in Bereishis, a time when many people are rushing through Shnayim Mikra and barely have time to reflect. It’s almost as if Hashem intentionally places the most profound ideas at moments when they can’t be fully grasped… hinting that some mysteries are meant to remain beyond our reach.