The neuroplastic nature of our brains principal is linked to the concept that connections within our brains are continuously being removed or recreated, depending on how they are used. In 1949, Donald Hebb coined the phrase "neurons that fire together, wire together" and conversely "neurons that fire apart, wire apart."
What this means is that all of our experiences, including feelings, thoughts, sensations, and muscle actions become embedded in the network of our brain cells, that produce that experience or the memory of that experience. Each time a particular thought or action is repeated, the connection between a set of brain cells or neurons is strengthened.
Simply stated, our brain cells communicate through synaptic "neuronal firing" where each cell fires as the next cell receives that communication. When repeated firing happens over and over again, the pathway in the brain strengthens, making a neural groove, so that the messages become automatic. Although this can be helpful in cases of perfecting your ability to play guitar, or perform repetitive tasks, it can be problematic when traumatic experiences from our past inform our present in the form of triggering memories. This applies to minor as well as major traumatic past events.
Often people don't realize they are re-experiencing a traumatic event simply by remembering it or, that they are existing in the limbic part of the brain. Our limbic system does not differentiate real time from past time, and the event in our memory can feel as real today as when it originally happened twenty years ago, for example. Part of what this guided meditation does is help re-frame negative experiences and limiting beliefs, allowing us to experience life from a place of safety where you will re-tell the story from a different part of your brain.
Based on Hebb's principal that neurons that fire together wire together, this meditation aims at creating new patterns of old memories helping to alleviate ingrained limbic responses from the past.
It is important to note that this meditation modality is not therapy, is not meant to replace medical advise from your doctor.