By blessing Hashem 100 times daily, we are connecting in the deepest way. Mindfulness of our actions makes us more aware of the Divine. It also serves to prevail over the forces of negativity, by attaching ourselves more closely with Hashem.
King David instituted 100 blessings when there was a plague in Jerusalem killin
This class based is based primarily on the work of the Ben Ish Chai discussing 100 blessings in greater detail and also outlining the way to achieve saying 100 blessings a day according to Jewish tradition.