Sentence:  `` Gladius Dei '' ( 1902 ) resembles `` The Way to the Churchyard '' in its representation of a conflict between light and dark , between `` Life '' and a spirit of criticism , negation , <WSD>melancholy</WSD> , but it goes considerably further in characterizing the elements of this conflict . 
Meaning of the word marked with <WSD> tags:  a feeling of thoughtful sadness