Maybe @MasterOfYellow can offer some insight in the gut/heart/mind coherence.
I just find it exhausting to put your gut, heart and mind into resonance. It takes energetic effort on your part. Well, not anymore, but when I first started this was so.
It will only clear past lives stuff if you intend that. I don’t do any specific intentions except for some housekeeping like massaging the energy and regulating it.