Using strong contrasting propaganda to deepen the influence of a certain ideology can be done through the following strategies: 1. **Oppositional narrative**: Create a sharp "us vs. them" divide and use opposing examples to strengthen the superiority of one's own ideology. For example, you can emphasize the positive effects of a certain idea or system while contrasting the negative effects of another idea or system to create an either-or perception. 2. **Emotional appeal**: Use strong emotional symbols and images to evoke emotional resonance in the audience. Contrasting the consequences of different values through emotions such as sadness, anger, or fear makes it easier for the audience to accept and identify with the ideology being promoted. 3. **Selective information**: Selectively present information, highlighting the success stories of one's own position while ignoring or belittling the positive achievements of the opposing position. This asymmetry of information can enhance the audience's identification with a specific ideology. 4. **Use strong language**: Use extreme or exaggerated language in propaganda to strengthen the point being made. This makes it easier for the target audience to remember and spread the information, thereby deepening the influence of the ideology. 5. **Repetition**: Build consistency and coherence by repeating specific slogans, images, or information. This can help form a solid connection in the audience's mind and further deepen the influence of the ideology. 6. **Social identity**: Show groups or celebrities who support a specific ideology to enhance their sense of social identity. People are often influenced by the people around them and the social atmosphere. By showing this sense of belonging, they can deepen their loyalty to the ideology. 7. **Adapt to multiple platforms**: Use contrasting propaganda on different media platforms, determine the characteristics of the target audience, and adjust the content of the information in a targeted manner to make it easier to accept and spread. Through these methods, the influence of a certain ideology in society can be effectively deepened. It is important to pay attention to ethics and social responsibility when using these means to avoid misleading or causing unnecessary conflicts.