Seeing G-d

 Berachos (07a) R. Ishmael b. Elisha says: I once entered into the innermost part of the Sanctuary to offer incense and saw Akathriel Jah, the Lord of Hosts, seated upon a high and exalted throne. He said to me: Ishmael, My son, bless Me! l replied: May it be Thy will that Thy mercy may suppress Thy anger and Thy mercy may prevail over Thy other attributes, so that Thou mayest deal with Thy children according to the attribute of mercy and mayest, on their behalf, stop short of the limit of strict justice! And He nodded to me with His head. Here we learn incidentally that the blessing of an ordinary man must not be considered lightly in your eyes.

Sforno (Bereishis  12:02) A true blessing by G’d is when G’d rejoices in our deeds and actions. Our sages illustrate this when they quote a conversation between the High Priest Rabbi Yishmael ben Elisha who, while offering incense on Yom Kippur, had a vision of the angel Katriel sitting on the throne of G’d. The latter said to him: “Yishmael, My son, bless Me.” He said to him: (in the words attributed as being G’d’s own ‘prayer’) “may it be Your will that Your mercy will subdue Your anger and may Your mercy exile Your justified attribute to punish Your people for their sins, and may Your mercy prevail so that You deal with Your children by applying the attribute of Mercy.” When G’d’s representative, the angel Katriel heard this, he touched the High Priest on the head, which the latter took as a sign that the blessing uttered by an inferior creature for a superior should not be dismissed as worthless.” G’d here blessed Avram, with becoming the one who would preach monotheism including awareness of the benevolence of G’d which He extends to all of His creatures.