Full Idea
The seat of the soul is the point where the inner and the outer worlds touch. Wherever they penetrate each other - it is there at every point of penetration.
Gist of Idea
The seat of the soul is where our inner and outer worlds interpenetrate
Source
Novalis (Miscellaneous Observations [1798], 020)
Book Reference
Novalis: 'Philosophical Writings', ed/tr. Stoljar,M.M. [SUNY 1997], p.26
A Reaction
I surmise that Spinoza's dual-aspect monism is behind this interesting remark. See the related idea from Schopenhauer.
Related Ideas
Idea 4838 Claiming that actions depend on the will is meaningless; no one knows what the will is [Spinoza]
Idea 4166 A consciousness without an object is no consciousness [Schopenhauer]