For it is exceedingly near to you, in your mouth and in your heart, to do -- Devarim 30:14
The Baal HaTanya, the great and holy grand Rabbi Shneur Zalman of Liadi, wrote a complete book on this one passage...
explaining clearly how it is exceedingly near, in a long and short way, with the aid of the Holy One, Blessed be He.
He did not write a book for saints but for the common person. Very few have the ingrained abilities to reach 'sainthood'. Yet, if the Ribono Shel Olam (the Master of the Universe) has said that "it's near to do", then everyone can do it.
This doesn't make it easy, but it does mean we can all reach a level of complete service to G-d. We can all strive to be, not a saint, but the best and most G-dly us that is possible in this world.
We will not be judged on whether we achieved greatness, but we will be judged on whether we achieved the maximum "us", as instructed by G-d through the Torah and mitzvot.
BS"D - בסיעתא דשמיא