Hegel rejects Greek dualism and almost stumbles upon a biblical Hebraism. He sees the Cartesian project as inherently mechanistic and incoherent (what connects mind and matter? Cartesians have never really answered this).
Unfortunately, Hegel still sees the idea of a mind/soul in a body as a “dualist temptation.” He does admit, though, that it is foreign to Greek thought (Taylor 81).
Hegel is drawing upon Herder’s expressivism. Thought, language, etc does not exist without a medium. Thus for Hegel, the subject, no matter how spiritual, is necessarily embodied. This is true up to a point, but runs into problems in two areas: God/Geist is not embodied (at least not God the Father and the Holy Spirit, though Hegel gets around that) and the soul exists in a disembodied state after death.