It may seem like a small thing- but, it has immense power. It helps us to realize the false-ness of our ego- which believes it is the 'doer' and as we truly live by the principle of A-karma, we can find power and strength to do what is needed at any given time.
Of course, a-karma is not about being without a conscience and doing whatever we want, since after all not we but the divine is the doer!! In fact, it is the exact opposite- it is doing actions as we are aware of what we are doing, being totally conscious about it and ensuring that our actions are in the well-being of the society at large.
As we go through each day, it is wise to remember that ultimately it is the Divine that operates through us and our prayers should be “Not my will, but let your will prevail”.