Materialism

Hello Rabbi,
I recently read an article about the explanations for the feeling of love. I saw in them purely materialistic explanations without any metaphysical intervention. Love does indeed feel real and metaphysical, but it seems to be only an illusion that it is so according to the results of experiments and brain tests. Where then does the spirit come in? If after all there is a physical explanation for everything (except consciousness of course, which in my opinion is a completely spiritual thing and it is very difficult for me to understand how materialists justify this) the bottom line – where can I find the soul?