Landmark is a despicable, manipulating, brainwashing and most of all deceitful cult, and a clear example of how deceitful they are is the sham "graduation" you attended.
The Landmark mind-controllers pressure their flock, ie suckers, throughout the initial 3 day seminar to invite family, friends, your car mechanic, hairdresser and anyone else you know to attend this "graduation
Forum:
Large Group Awareness Training, "Human Potential"