The brain processes through streaming consciousness that 'appears' to momentarily stop or spike when the person experiences stress or shock - thus creating a memory in the flow of their life events.

There are biochemical reasons in the brain that determine memories but it's about emotions and processing - stress being a major factor to that end. Stress would go along with abuse, bullying, abandonment, death, negative emotional spikes and how you felt when an experience happened.

Metaphysics 101 ... cure the emotions to cure the physical so the issue doesn't manifest in another part of the body even when allegedly cured by a healer. Some of my clients who work as healers tell me they can go back to a 'spiked incident' in their client's grid and disconnect that experience forever from their current lives. I don't agree. It's a temporary 'Band-Aid' but helpful in the moment.

At the end of the day ... like everything else ... memories and healing go to one's DNA programming.