Acharya Prashant addresses the common human tendency to reject, fear, or feel disappointed by anything new. He explains that rejection occurs because the mind constantly compares new experiences with its existing, limited knowledge. If something is truly new, it cannot match the old; therefore, a mind clinging to the past will inevitably reject it. He emphasizes that human knowledge is always incomplete and that if our current understanding were sufficient, we would not experience frustration or fear. True openness comes from the humble realization that what we know is limited and that the unknown is vast.