Mind-body dualism, or the belief, roughly speaking, that we are a combination of body and soul, is not exactly coming back into respectability in leading philosophical circles, but it does show signs of tiptoeing back into the conversation.
To rationally settle this issue one needs an adequate conceptual framework. Finding one is not easy, however. That's because the dynamics involved is described in three different incompatible languages.
By formulating the Cogito, Descartes was implicitly espousing the view that mind exists independently as something distinct from, and different from, matter. Where he ran into problems was when he tried working his way back from the mind's reality to the reality of anything else.
You believe in God or astrology or a purpose in life because you apply ideas about people -- that they have thoughts and intentions -- to the natural world. What has not been clarified is exactly how various cognitive biases interact to produce specific ideas about the supernatural -- until now.
Cartesian dualism presupposed an independent reality "out there" that remains undisturbed during scientific observation. Heisenberg's uncertainty principle removes the partition separating mind from matter, rendering a fatal blow to Cartesian dualism.
So are you a dualist? Most scientists reject the notion that the mind has an immaterial substance that's unlike the physical world. Instead, they argue that the mind somehow emerges from the squishy matter called the brain -- a philosophy called physicalism.
Instead of labeling the other person or our ourselves as bad or wrong, see this as an opportunity or contrasting life situation that will allow you to build a bridge to a better place, a more desirable moment.
Devotion might look like what a student has with a teacher or an aspirant has with a guru. The teacher must be high minded and the guru must be the best kind with the highest goals of the student in mind.