Musar zu Schemot 32:34

See what is written in the Zohar (Zohar Chadash 17a): Rabbi Aba said: How important it is for a person to introspect and examine his deeds every day. Rabbi Yitzchak taught: Four winds blow every day from the four directions of the world: The East Wind — This wind generally holds sway and blows from the morning until midday, bringing with it a storehouse of desire, for there is a storehouse above the gates of the East that is called “desire.” It has three thousand and seventy-five winds of healing for the world. Rabbi Yochanan ben Zakkai said: A certain angel named Micha’el is appointed over the wind that comes from the east from the morning until midday. Micha’el is appointed over the eastern side along with his flag. Rabbi Yochanan ben Zakkai also said: This is Micha’el, as it is written, “Behold My angel will go before you, etc.” (Shemos 32:34). The word for “My angel” (מלאכי) is comprised of the same letters as the name “Micha’el” (מיכאל). It was taught: When the eastern wind is stirred up to go forth over the world if a person traveling along the road will concentrate on our saying that Micha’el is the prince of lovingkindness, the Holy One Blessed is He will arouse him and all the blessings uttered by the person’s mouth at that moment will be fulfilled. Moreover, he will be happy the entire day.