Acharya Prashant explains that the fundamental objective of all spirituality is the annihilation of the ego, as it is the ego that suffers. He addresses the confusion regarding differences of opinion among sages by pointing out that these differences are projections of the seeker's own ignorance. Most people do not authentically know who a sage is; instead, they rely on social opinions and indoctrination, much like a child is told who their parents are. This lack of original knowledge leads to contradictions and the creation of false images of spiritual figures.