The Sefer Yetsiroh tells us that everything G-d created is repeated on three different planes: 'olom, shonnoh, nefesh' - space, time, and the person. Pesach elevates the person. We eat Matsoh. Every mouthful is a separate Mitsvoh [according to many important opinions]. We eat Morror. The body imbibes qedushoh.
And then we start counting. By counting each day, we are elevating the time unit. Every day is a brochoh, a Number of the Sephiroh, every day, that time unit is elevated. For forty-nine days. We are climbing a ladder. The time is no longer physical. It is bound with the Eternal.
After this unit of 49 days of counting, we then receive the Torah at Har Sinai. The elevation of 'place'. Through the elevation of the time plane, we have reached that elevated space, the same transcendent place our forefathers stood at the original Matan Toroh, some two and a half thousand years ago.