Aspirants can transform theoretical knowledge into practical understanding for UPSC by engaging in active learning techniques. This includes applying concepts through case studies, current affairs analysis, and discussing issues in groups. By participating in debates and mock tests, candidates can practice articulating their knowledge and gain insights into real-world applications. Furthermore, internships or volunteering in relevant fields can provide hands-on experience, reinforcing theoretical concepts. Regularly reviewing and summarizing learnings also helps in consolidating knowledge and ensuring it is readily available for comparative analysis during exam preparation.