Now, our Sages have said in the Gemara (Rosh Hashana 18a): “The verse says (Yeshaya 55:6), ‘Seek Hashem when He makes Himself available, call out to Him when He is close,’ this refers to the Ten Days between Rosh Hashana and Yom Kippur.”
The meaning of “when He is close” is when He is expressing Himself with a “shining face,” as explained above, which is an “Awakening from Above,” when “His left hand is under my head,” as explained above.
At that time is much easier for us to have an “awakening from below,” as they said in the Gemara (Rosh Hashana ibid.): “Usually, Hashem makes Himself easily accessible only to a congregation, and a private individual must invest effort to seek out Hashem. But here, During the Ten Day between Rosh Hashana and Yom Kippur, He does make Himself easily accessible even to a ‘private individual,’”
The deeper meaning of Hashem making Himself available to every ‘private individual’ is that Hashem comes close to every person in way that reveals the level of “Yechida-essence” of the Jew, enabling him to do Teshuva on the deepest level, as explained above.
Now, at that special time (of Rosh Hashana through Yom Kippur), all the ‘sparks’ of the souls of the Jewish People receive from Hashem Above a deeper level of love and fear of Hashem.
This is a very lofty level of love and fear of Hashem, that it is impossible to achieve only with one’s own effort in an “awakening from below.”
Obviously, one must invest effort in an “awakening from below” to attain the love and fear of Hashem in order to receive any higher level of love and fear. The intent is that when someone works to attain the love and fear of Hashem, during the Ten Days of Teshuva he will attain a love and fear of Hashem that far beyond his normal capacity with his inherently limited efforts.
As it is written: “G-d, please create within me a pure heart.” (Tehillim 51:12)