And henceforth do Man service—glass-conglobed
Though to a pin-point circle—all the same
Comprising the Sun's self, but Sun disrobed
Of that else-unconceived essential flame
Borne by no naked sight. Shall mind's eye strive
Achingly to companion as it may
The supersubtle effluence, and contrive
To follow beam and beam upon their way
Hand-breadth by hand-breadth, till sense faint—confessed
Frustrate, eluded by unknown unguessed