A well of serious thought and pure, / Too deep for earthly light.

to drag somebody head and shoulders

Our part of the veranda did not hang over the gorge, but edged the meadow where half a dozen large and sleek horses had stopped grazing to join us.

Bodies in and of themselves lack spissitude. But since, in nature, all bodies are permeated by spirit of some kind, the ability of a complex body to maintain its size indicates a certain, constant spissitude.