available to animals in the fields. Once a species is no longer available in the land, halakha requires that it be removed, made ownerless, and made available to anyone who wishes to take it through a procedure called biur. The Orthodox Union describes the contemporary application of the rules of biur as follows: Thus, while the obligation of making one's produce available to the public and permitted to all takers can be performed in such a way as to minimize the risk that this availability will actually be utilized, this risk cannot be entirely eliminated. The community at large, including members of the poor, must be afforded some opportunity to take the produce. Biur only applies to produce that has shevi'it sanctity. For this reason, it does not apply to produce grown under the heter mechira for those who accept it. (Under the reasoning of the heter mechira the shmita does not apply to land owned by non-Jews, so its produce does not have shevi'it sanctity.) Kabbalah and Chassidut All good and blessing are the life of Jewish people. "Israel could be in death" without this "spiritual-life", i.e. Holy air of Eretz Israel; Rashi teaches that all Jewish people can say that God has done the Creation and has stated ha'Aretz as gift to Israel: if Nations want to take this Land we must teach that in past time all World was "Reign of Kushit" in fact "now all Eretz Israel is in the hand of Jewish people." According to the Chassidut, eating is not only a way to stay alive but even a necessity so that the soul can continue to be strongly inspired by the study of the Torah and the prayer that the Jew performs every day: this means that something material, the food - food can in fact be from the "mineral, vegetable or animal kingdoms" - becomes "sublimated" to enter the sacred area of devotional service to God. The main alliance between God and the Jewish people consists in continuous Blessings, transcribed also in the Torah; from Moses to Aaron up to the Levites and to the Jewish people as a whole, in the Torah the pact of revelation is established to bind them forever in the Land which can only be that place where it is possible to realize the Kingdom of God. The event of the gift of the Torah at Mount Sinai