I remember learning that men have the obligation to study Torah day and night. That literally it doesn’t mean they have to be in Kollel all the time, but that in their free time they should learn. We also learned that by men saying Kriyas Shema in the morning and night it fulfills their obligation of Torah study. I never understood how this can be. But now I finally got my answer.
Something to Say:
Pure olive oil…to Kindle the lamps continuously (27:20)
R’ Yochanan says in the name of R’ Shimon bar Yochai that by reciting Krias Shema in the morning and the evening a person fulfills the dictum that Torah study should never depart from one’s mouth. The Chiddushei HaRim asks: How can the recitation of Krias Shema, which takes only a few minutes, fulfill the obligation of Keeping Torah on one’s lips perpetually?
His answer connects R’ Shimon bar Yochai’s statement to the words of this verse, to kindle the lamp continuously. How long did it take the Kohen to light the Menorah? only a few moments, but since it was lit with such great devotion and enthusiasm, it became a light that lasted all day. Similarly, although the recitation of Krias Shema takes but a few minutes, when said with concentration and enthusiasm its effects last the entire day.
Even though the recitation of Shema only lasts a few minutes, when said with Kavannah and devotion it can have a long lasting effect which is so great, that its as if your involved with Torah study the whole time. Obviously this can only work with those that truly understand what they are saying in the words of Shema.