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1. Indulgence in moral pronouncements; the exposition (often superficially) of a particular moral code
   - moralizing, moralization, moralisation [Brit]

1. Interpret the moral meaning of
   "moralise a story"
   - moralize
    
2. Speak as if delivering a sermon; express moral judgements
   - sermonize, sermonise [Brit], preachify, moralize
    
3. Improve the morals of
   - moralize

See also: moralisation [Brit]

Type of: advocate, interpret, philosophising [Brit], philosophizing, preach, reclaim, rectify, rede [archaic], reform, regenerate