“God appeared to Abraham in the Plains of Mamre...”
In contrast to his own rules, Arizal here gives a few pieces of advice that relate to practical Kabbalah.
The first words of this Torah portion have a holy name of Ariel encoded in them: ויר"א אלי"ו = אריא"ל, and the extra letter vav, ו, corresponds to the name of God called “Av” - with the Gematria of 72 - יוד הי ויו הי.
There are many omens that one can performed based on this name. If one feels that his evil inclination is getting the better of him against his will, he should concentrate on the letter vav, corresponding to the name of God “Av”, and say to himself the name Ariel eleven times.
Second: if one has an enemy, he should write the name Ariel on a clay vessel twenty-one times, together with the name of his enemy, and throw it with force, so that it breaks, at the door of his enemy or at a place where he passes, and he will see miracles.
Third: after one immerses himself into a mikvah, he should repeat this name 242 times, as the gematria of Ariel, and this is very good for his soul.
Fourth: when one wakes up and arises from his bed in the morning, he should repeat this name 242 times, and fortified by this, he will understand everything that his eyes are going to see this day.
Fifth: when one wakes up in the middle of the night to say his midnight prayers, called Tikkun Chatzot, after he finishes his prayers and says the confession, he should mention the name 11 names, then 23 times in the “Who hears prayer,” - and that will help in the correction of his soul.
Sixth: saying this name 242 times helps to enlighten his eyes, and it also has many other beneficial effect – “Only I have not seen them all” - adds Rabbi Chaim Vital - “And may the Blessed God enlighten our eyes with His Torah!”
Art: Gustave Caillebotte - Bathers