A poem performs transvaluation when it reverses a hierarchy of worth rather than simply celebrating an overlooked subject. Dust, failure, bodily labor, marginal speech, or forbidden desire may become sources of knowledge and beauty. The reversal remains philosophically active because it tests the standards that produced exclusion in the first place. Through ironic praise, altered scale, and unexpected diction, poetry can make readers feel values changing while they read.

Transvaluation means reexamining inherited values and changing the terms by which worth is judged. The concept is especially associated with Friedrich Nietzsche, who asks whether conventional moral oppositions have been accepted without sufficient criticism. A poem may transvalue the lowly, ordinary, bodily, or historically silenced by presenting it as powerful or beautiful. Related ideas include reevaluation, critique of morality, reversal of hierarchy, and defamiliarization.