Paramacharya Palaniswami continued on the theme of “inseparability” that scientists are coming to accept through their experiments, the results of which show that that what we think of as “space between” objects is not what we think it is.
In our teachings we're both monistic and theistic. In the beliefs of Saivism the idea of the three worlds is the basis and key to understanding temple worship, theism. The inner worlds are there to help you. The essence of the soul is already the same as the essence of God Siva, monism. You just have to find it.