Parshas Eikev

Liyluy Nishmas Elchonon Tzvi ben R'Yisroel Menachem.... In perek ches posuk yud alef it says, "Hishamer licha pen tishkach es Hashem Elokecha."  "Watch yourself lest you forget Hashem your God."  In the Sharei Tshuva, Rabeinu Yonah says that this is an "azhara" warning that is directed towards ones heart, do not forget Hashem.  It is said that any time the words "hishamer" "pen" and/or "al" is mentioned, it is a "lo sasei".  So there is an actual mitzvah not to forget Hashem.  The Torah is telling us that we must remember Hashem at all times, and try to work on acting in a manner befitting one who recognizes Hashem.  The Misilas Yisharim says that a person has to be constantly thinking about what the proper path in life is.  The Rosh Yeshivah ztl asks, Hashem is not amongst us in a way that we can see him, and many times we are caught up with different gashmiusdik things, and just can't always be focused on remembering Hashem and thinking of the proper ways to serve him.  When people are busy at work, for example, they obviously will have work on their mind and not be able to focus on this.  This being the case, how could the Torah command us to be focused on it "bichal eis" at all times?  He explains, that of course there are times that people are caught up with things, but they can always have it in their mind on a sub-conscious level.  Just as no matter how busy we are, we always ensure that harm does not befall us, and that we are not damaged, so too in our subconcious we can constantly remember Hashem and think of the proper ways to serve him.  Rav Isaac Scher ztl the Rosh Yeshivah of Slabodka, brought a ra'yah to the idea of being subconciously aware, even when people are sleeping.  A mother will awaken from a childs cry, even from an extremely deep sleep and even if the cry is soft. However, she most probably will not wake up from a train thundering by  her window.  To explain this phenomenon we must say that really we hear everything while we are sleeping, we just choose what to actually listen to and what to ignore.  A mother will instantly listen to the cry of her child and therefore wake up to care for it, but the train she will ignore.  We have this same power to at least sub-consciously remember Hashem and think of the derech we should follow, and therefore it is not an impossible mitzvah.  We should all be zoche to be on the level where we can think about Hashem "bichal eis" no matter where we are or what we are doing... Good Shabbos