The idea of the body being the temple of the spirit is not a new one. Yet I doubt its accuracy because the body often referred to is the physical body. When religious writers of the past spoke in this vein, including biblical writers of course, they were referring to something more than just the physical form. The 'flesh' or external form to which they referred was the physical senses, and included the thoughts, emotions and perceptions or personality characteristics. Indeed, St. John of the Cross specifically refers to such traits listing pride, spiritual avarice, lust, anger, gluttony, envy and sloth as the senses. One could add to the list. Of course there are also positive personality traits to consider. In other words the body to which they refer are all those senses which come into play when we interact with the world/universe around us, that 'body' which is also known as the ego.
But there is another Self, some other and spiritual state of mind perhaps, which lies far below/beyond the ego and the realm of thought and emotion. That Self is ..... if I may express it this way ..... like a sun hidden in the crypt of an inner church, that lowest/deepest part of a person. About that sun, it can be said that it represents that to which the epithets, 'higher' and 'superconscious' may be applied. One might even suppose, if one is inclined in that direction, to include the word ..... 'divine'. It seems to be of, or allied to, the Spirit [Holy or otherwise] of what a religious would call God. Yet as I have said, it is hidden ..... deeply ..... perhaps in the very foundation of one's being, in, to use a Meister Eckhart expression, the Ground of the Soul*.
Finally, I would pose the questions, "Are the spirit and the soul linked? Does one generate the potentiality of the other? Why are they hidden in this place of safekeeping?"
* Meister Eckhart describes the Ground of the Soul as, 'a central silence, into which no creature may enter, nor any image. Nor has the soul there either activity or understanding, Therefore she is not aware of any image either of herself or any creature.'