Calmness usually means that we are free from excitement or passion, that we are tranquil. Yet, we must ever strive to achieve the state of calmness for it can be fleeting as we feel the pressures of every day worries and tasks.
Calmness lets us grow within ourselves, and lets us step back to see the world differently. We see the actions of man to another man with more compassion. We are more aware that each person has a great battle that wages within them. We understand that sometimes the "letting go" of attachments is all that is required to bring great calmness.
Finding calm within is my next big achievement.