Sentence:  And yet Erisianism should not be treated frivolously. Greg Hill told me his experiences with <WSD>Eris</WSD> had been quite profound. Although it started as an atheistic joke, his perceptions began to change. 
Meaning of the word marked with <WSD> tags:  (Q140001) The goddess of discord and strife, whose apple of discord sparked events that eventually led to the Trojan War; "equated by Homer with Enyo (goddess of violent war) and identified with the Roman goddess Discordia";/  the same figure as principal deity of Discordianism, regarded as the goddess of disorder.