The Holy Berditchaver revealed that that the miracles that took place originally on Chanukah, recur every single year during these 8 days. The Chidushei Harim expounds that the holiness impacts every Jew on his level. The righteous person is immediately grateful for the ability to serve Hashem. The Jew at the bottom of the ladder doesn't appreciate it right away, but, eventually his soul will awaken and come to the realization that connection to Hashem is what he really wants. These are the 2 concepts of Chanukah, praise and admission. Praise for the goodness and admission to the fact that this is what is truly meaningful and everlasting. The Sfas Emes takes this even further that the light of Chanukah allows us to say Hallel even while still in exile, because its about Hashem's light penetrating the darkness, We can be touched and spiritually awakened even while still in exile.