Meditation has only been a very small part of my practice. I've worked with a whole lot of different practitioners since about 2012. I can't really distil a decade plus of healing work into a comment that skeptical readers will find persuasive, but for those wanting to look into it for themselves, books by Gabor Maté and Bruce Lipton are a good start, and practices like Internal Family Systems, Family Constellations, EFT tapping, biofeedback/neurofeedback and Neuro-Emotional Technique are a worth trying.
In principle, emotional healing techniques are effective if they involve "letting go" of the physiological reaction (i.e., "trigger") that is activated when experiencing (or remembering) a traumatic event. Once the physiological reaction ceases to occur, the emotion is "processed", and is just a benign memory like any other. But that can take a huge amount of work over a long time for some complexes, if they are very, erm, complex, and deeply ingrained.
One of my practitioners, who I see every 2-3 months, specializes in releasing “armor” from the body with a specific massage technique.
I can easily believe that in many cases where someone is considered to be moderately-ASD, that it’s a case of this kind of armoring.
This is not to say there is no physiological or genetic component, but that the trauma and armoring is a significant factor in the expression of the condition.
In principle, emotional healing techniques are effective if they involve "letting go" of the physiological reaction (i.e., "trigger") that is activated when experiencing (or remembering) a traumatic event. Once the physiological reaction ceases to occur, the emotion is "processed", and is just a benign memory like any other. But that can take a huge amount of work over a long time for some complexes, if they are very, erm, complex, and deeply ingrained.