Anxiety is a subconscious (and sometimes conscious) fear response to something. It happens when the person feels insecure about something. It may be based on a fear of the unknown, a feeling of being vulnerable, being out of control, or other factors.
This program works to sooth and eliminate anxious responses by disconnecting them at the subconscious level and causing the subconscious mind to disconnect from, overcome and reject them. The result is that when this program starts taking effect, the anxious response simply disappears.