It has been explained above that for every Avodah there first needs to be an Isarussa Dile’Eilah to initiate an arousal within the person. This is because following the above-mentioned revelation that occurred on the day of the establishment of the Mishkon the Possuk states:
וַיְכַס הֶעָנָן אֶת אֹהֶל מוֹעֵּד וּכְבוֹד ה׳ מָלֵּא אֶת הַמִּשְכָן׃ וְלֹא יָכֹל מֹשֶה לָבוֹא אֶל אֹהֶל מוֹעֵּד כִּי שָכַן עָלָיו הֶעָנָן וּכְבוֹד ה׳ מָלֵּא אֶת הַמִּשְכָן “And the cloud covered the Ohel Moed, and the glory of HaShem filled the Mishkan. Moshe could not enter the Ohel Moed because the cloud rested upon it and the glory of HaShem filled the Mishkon.”
[Finally,] this explains why our Possuk states after that וַיִּקְרָא אֶל מֹשֶה “And He called to Moshe” without stating who called Moshe, because since the Divine revelation in the Ohel Moed came from such an awesome and lofty place, from a place higher [even] than the level of Moshe therefore there was a need for an extra arousal from above from a place that is higher than any names or revelations. It is a result of this [level] that there was able to be the [next level of] וַיְדַבֵּר ה׳ אֵּלָיו “HaShem spoke to him.”
So much so that it continued לֵּאמֹר “saying” so that he can convey it all to the B’nei Yisroel. This symbolises the Isarussa Dile’Eilah that arouses from above.
