Can one have a healthy mind without a healthy body?
Yes. Mens sana in corpore sano. A healthy mind in a healthy body, the old Latin statement. If the body is healthy it conduces towards a healthy mind, but the concept of healthy mind through the ages is a concept which is a worldly concept. It is not a religious concept, it is not a truly human concept. Remember, the human is the happy creator. What sort of a being is the happy creator? I do not mean creator in the sense in which a great musician or poet or scientist or a philosopher is a creator. I mean something other than all that, something which belongs to the context of Transcendence itself, not to the context of finititude, temporality and mortality. There have been Perfected Holy Ones who necessarily had healthy minds but they suffered physically, quite a lot. One of the outstanding examples of that in our own day has been Ramana Maharshi. That is one example, there have been other examples too. So you can have a healthy mind without a healthy body, but a healthy body is certain