“How your mind can heal your body” – sciatica

So I am currently¬† reading a book by ” David Hamilton PhD” it was given to me whilst my daughter was in hospital. It’s all about how the mind can heal your body, something I have always believed in .

It has a passage about visualization in pain relief – I’m wondering if anyone has given this a go ?

This is an exert from his book , this is for sciatica ” to symbolize sciatic pain, imagine that the sciatic nerve is squashed underneath a boulder. Picture the nerve in any way you wish ( perhaps a taut rope). Now imagine rolling the boulder away and freeing up the nerve. See the tension reduce in the nerve as it returns to its normal position”. D Hamilton PhD.

Is it mind over matter ? that’s a big question.