To initiate change in the world we need people who are changing. People who start altering themselves, their behavior, their thoughts, their being.
This is how energetic fields of consciousness are created, so-called morphogenetic fields. The bigger such fields are, respectively the more people are part of it the more people can be reached.
If we look at the domino effect as an example, then there is only as much power needed to get the first stone to tumble and all the other ones keep falling through the chain reaction, up to the last one. In regard to people this means, there is only a certain percentage needed who gather the power to make this first stone tumble. This is the so-called critical mass or chain-reacting mass.
If, for example, world-peace is our goal, then we need a critical mass of people who are peaceful inside and who have solved their inner conflicts.
If we want to release the patterns of slavery, again, a critical mass of people is needed who have done it and animate the others to do it alike.
Every single person who contributes can be exactly the final straw to make the first stone tumble. That is why every one of us, as a part of the whole, is so important. Every thought, every bit of lived peace is the essence of change in the world. This is what finally creates the critical mass needed to initiate a new society with self-responsible and self-determined people.