Intercognition

[…] and four principal or chief Ecclesiastics, with the rulers of the Churches under their authority, may be appealed to as the eventual commencers by that mutual intercognition, which may be expected from the progress of society, of better feelings among Christians than those which prevail at present: […]

The question of intercognition between the arts often remains a vague one, applied to relations between different media, because poems by painters or paintings by poets (like Goethe's drawings) are seldom more than curiosities […]