Comentario sobre Deuteronómio 6:6

— What is the “love” that is here commanded? The next verse tells us: והיו הדברים האלה THESE WORDS [WHICH I COMMAND THEE] SHALL BE [UPON THINE HEART] — for thereby thou wilt arrive at a recognition of the Holy One, blessed be He, and wilt cleave to His ways (Sifrei Devarim 33:1).

והיו הדברים האלה…על לבבך, "And these words…shall be upon your heart." In accordance with our commentary on the previous verse, we must view this verse as sort of a band-aid for a person who suffers from the dearth of one of the three basic values in this life described in Moed Katan 28. The Torah recommends that anyone who suffers from any of these three deprivations should take our commentary to heart. He should remember that these values (blessings) which he lacks are grossly overrated in the overall scheme of G'd's universe in which the life in the hereafter is the real objective.

והיו הדברים האלה, “these things (concepts) shall be;” the idea of G’d’s Unity, the love for Him which Moses mentioned, shall all be deeply engraved on your heart. Alternatively, Moses refers to the commandments, all of which should be firmly engraved on our hearts.
אשר אנכי מצוך היום, “which I command to you this day, etc.” Sifri Vaetchanan 93 explains the reason that Moses adds the word היום, this day, as if he were commanding all the commandments on that day for the first time, to mean that the commandments should forever be something fresh in our minds. We should not relate to them as something deja vu, something which has lost its freshness and therefore its appeal. It should always be like some new decree the depth of which we have not yet explored. You should view them as if you had received them from Mount Sinai only this day.