The human spirit consists of a tenuous, spiritual substance and looks the same as the physical body.
They are a sort of robot who has no inner spiritual substance to control it.
It is a purely spiritual substance originated from God.
Consciousness unites substances, material or spiritual, with the same personality.
This forms itself into their evil enemy, a spiritual substance surrounding the soul (antimimon pneumatos).
That note had vibrated within herself, the spiritual substance present within all matter responding to celestial harmony.
More held that spiritual substance or mind controlled inert matter.
Is death the end of all existence, or does some sort of spiritual substance linger on, surviving throughout eternity?
If you want to determine the spiritual substance of a musician, put Liszt on the music stand.
It is difficult to reconcile these points with the popular picture of a soul as a sort of spiritual substance "inhabiting" a body.