Now, this level of “Lavan of Holiness” (Loven HaElyon) mentioned above, is the source of the “Higher level of Mercy” from Hashem, which is above and beyond the order of levels of Hishtalshelus.
This level is awakened and revealed in the “Morning, which is associated with Avraham,” who represents the attribute of Kindness, as it is written (Bereishis 22:3): “Avraham woke up in the morning,” to draw down this level of mercy from Hashem, which enables the process that the “Awakening from Hashem Above” should be dependent on the “awakening from the person below,” and in order to enable this it is needed to draw down Hashem’s mercy on the level of the “Kindness of Avraham.”
The Mittler Rebbe explains in Biurei HaZohar:
The idea of “morning” is sunrise, when the light of the sun reaches the world and lights it up. This physical revelation of light represents and corresponds to a spiritual revelation of Hashem’s Light that also takes place in the morning. This revelation of Light is from a very high level, from the level of Hashem’s Kindness on the level of Atik Yomin, which is the source of the world of Atzilus.
More specifically, the source of Atzilus is called “Kesser” which has two levels, Arich Anpin and Atik Yomin. Arich Anpin is the lower level of Kesser, a more direct source of Atzilus, and Atik Yomin is the higher level of Kesser which is a higher source of Atzilus, and is a “step removed” from Atzilus.
Avraham represents and embodies the level of Hashem’s Wisdom of the World of Atzilus, and the source of that Wisdom on the level of Arich Anpin (see previous footnote). This revelation of Hashem’s Kindness as it transcends Atzilus is the source of Avraham’s ability to descend into physical world (through Malchus) in a way of Kindness. This enables Avraham to bring down Hashem’s attribute of Kindness into this world by teaching everyone the wisdom of Hashem’s true existence, and other forms of kindness that Avraham performed.
Therefore, it is called the “Morning associated with Avraham”: It is the morning time revelation of Hashem’s unlimited Kindness, which is revealed in Avraham, Hashem’s Wisdom, and through him it descends into the attribute of Kindness of Atzilus and from there into our world.
It is from this unlimited Kindness of Hashem that shines into our world (every morning) through Avraham that we receive the power to cause an “Awakening from Above” through our “Awakening from below.” The source of this unlimited Kindness that shines in our world, called “the Morning of Avraham,” is from the Infinite Light of Hashem, which is the source of the “Higher level of Mercy” from Hashem, as explained above. Since, this Kindness that shines in our world and enables us to awaken Hashem’s mercy, is itself a very high form of Mercy from Hashem.
(The Mittler Rebbe adds: In the morning, when Hashem’s mercy is revealed, Hashem judges everyone favorably. If someone invests in his morning prayer and tries to connect himself to Hashem at that time, then Hashem will judge him mercifully, even he is not so perfect in many aspects of his service of Hashem. Since at that time Hashem looks to find something good in the person to vindicate him. This is another reason why it is very important to put extra effort specifically into the morning prayers.)
As we say in the morning prayers, in the blessing before Shema: “You [Hashem] have loved us with an eternal love... our Father, Merciful Father, please have mercy on us...” We see from here that specifically in the morning is a time when we can awaken Hashem’s mercy on us.
