Visualization techniques are important in preparing for UPSC interviews as they help candidates articulate their thoughts and responses more confidently. By mentally rehearsing answers to common interview questions, aspirants can enhance their clarity and coherence during the actual interview. This practice reduces anxiety and promotes a positive mindset. Visualization can also involve imagining successful interactions with the interview panel, which cultivates a sense of assurance. Overall, these techniques aid in creating a mentally prepared attitude, crucial for performing well in high-pressure interview situations.