Strength in Numbers

During the days between Rosh Hashana and Yom Kippur, known as the ten days of repentance, every individual has the power of a minyan, a quorum of ten: That which at any other time of year requires the combined effort of ten, can be achieved by the individual during these ten days.

Imagine then, the impact of ten individuals who join together to perform the mitzvah of repentance. But how can something as intimate as repentance be done as a congregation?