I have twice had sessions with Rosalind, when getting into an emotional tangle or block. And each time she got me untangled!
Never having done anything like this before, I went because I knew what a straight-forward, sensible, practical, down-to-earth person she is. An incentive the second time is that she is also fun! The sessions were entirely serious, but not "heavy." I would say there is a wry sense of humour about how we humans get ourselves so mixed up, as she knows herself.
As a scientist (theoretical physicist) I have not the faintest idea of how or why what she does works. But what matters for me is that it has worked for me, (which I take as the spirit of science.) As for understanding, there is such a vast amount that I don't understand in the world that I don't mind this being one more!