Be clear in layman's terms, what does it do for them? How does it change their lives? How is their life better? What pain does it heal? Be clear on benefits always. I've been in the alternative treatment industry for decades and I don't know what "psycho-somatic method to process, and complete trauma that is held in the body" means. 

When it is a newerish type of modality, you need to aim at peeps who are already in the alternative universe. Trying to sell to someone that needs convincing is near impossible. Aim for the customers that are already in your sphere. 

Look for health fairs or even organize one yourself. Are you friends with chiropractors or acupuncturists? Talk to them to see if you can host a fair at their offices, look for other people to fill out the fair with complimentary modalities. 

Start a blog or use social media to talk about your expertise. Share what you know and what your work does for people.