Acharya Prashant explains that the greatest obstacle to learning something new is the burden of past knowledge and habits. He illustrates this with a story of a musician who charged a student more and required more time to teach him because the student already had five years of prior training. The extra time was needed not to teach music, but to help the student unlearn his old habits. Similarly, understanding love is difficult because people are already filled with preconceived notions, images, and definitions derived from movies, family, and society. To understand true love, one must first understand what love is not: it is not possessiveness, attachment, hormonal activity, dependency, or self-sacrifice.