Devotion. This is what lay Dominican chapters are about. They meet once-a-month, attend Mass of have some other community activity, they say a bit of Office, and then they discuss some religious topic. Until next month. They are devoted to Saint Dominic, all Dominican saints, Dominican observances, in fact, all things Dominican and all things black and white. But the world needs them to preach the Gospel. The Postmodern Worldview is infiltrating all of Western Civilization. The General Chapters of the Order - the ruling body - has developed a vision of the lay branch that lifts it to co-responsibility for the doctrinal mission - preaching.
This book is a how to: how to preach and how to distinguish preaching from everything else, along with a whole bevy of resources. This is the seminal work for lay Dominicans.