The Zohar, Chapter ”Metzorah (The Leper),” Item 20: “She is a tree of life to those who take hold of her, and happy are all who support her.” The tree of life is the Torah, a high and mighty tree. It is called Torah (teaching) because it instructs and reveals what was hidden and unknown. She is called “life” because all the upper life is included in her and stems from her.
The “Torah” stands for the Light of Correction, which is the Light that Reforms. This Light is attracted through the study of Kabbalah. It influences our intention and changes it from the natural, egoistic one to an intention of giving. By changing our intention, our desire is redirected from “for my own sake” to “for my neighbor’s sake,” or in other words, from receiving to giving.
The desire itself is neither receiving nor giving. Desire is defined by the intention. To the extent of our similarity with the Creator, we reveal Him and the Light that fulfills us.
Correction of our intentions is referred to as carrying out the commandments or the Creator’s directions. When we correct the 613 intentions that are “for my own sake” by transforming them into “for the sake of bestowal,” it is called the execution of 613 commandments. The 613 Lights or “613 advices” (Tariag Eitin) correct us by filling the 613 desires.
“Isra-El” (directly to the Creator) refers to a person who strives to attain the Creator by correcting himself. Zeir Anpin of the World of Atzilut is called the Tree of Life because it brings the Light of Correction to us.