Ani Lidodi 5712, Class Eight, Perek Two (2). Torah has to be a gift. Two reasons (that we explained that are not inside explicitly): A. It is given to the ‘masses’ on the lowest level first and it’s scholastic depth (until infinity) is only discovered by the deeper Yidden later on, thus it need be a gift, to give even what is not received right away. B. The world has a what (it is) and why (it is) you cannot know the why until you the what; moreover there are levels of the ‘why’ which are not revealed to the would (through the what) at all. They must be given as a gift. Torah is an essence all of it (including what Moshiach will reveal תורה חדשה מאתי תצא) must be given all at once, thus it is all gifted at Mattan Torah.