Why were the laws of kashrut (the kosher laws) given?
Along with permission to eat meat, many laws and restrictions (the laws of kashrut ) were given. These laws were designed to sanctify the act of eating, and to keep people from taking the everyday act of eating for granted. Rabbi Kook’s belief that the regulations related to the consumption of meat implied a reprimand and is an elaborate apparatus designed to keep alive a sense of reverence for life, and to lead people away from their meat-eating habit is echoed by Torah commentator Solomon Efraim Lunchitz in K’lee Yakar, his commentary on the Torah: What was the necessity for the entire procedure of ritual slaughter? For the sake of self-discipline. It is far more appropriate for man not to eat meat; only if he has a strong desire for meat does the Torah permit it, and even this only after the trouble and inconvenience necessary to satisfy his desire. Perhaps because of the bother and annoyance of the whole procedure, he will be restrained from such a strong and uncontrollable desire
