One example is, a visual /ga/ combined with a read /ba/ is usually heard as /da/. The outcome is powerful, persisting even with expertise in the illusion, not like specified optical illusions that may stop working when one 'sees by' them. This system was often applied during the Mannerist https://sites2000.com/story9458243/illusion-of-kundun-mu-online-things-to-know-before-you-buy