The narrator feels inadequate compared to a girl who has re-entered his life, believing he doesn't measure up to her standards. Despite his insecurities, he is determined to be there for her, understanding the importance of providing protection and support in her life. His feelings of unworthiness linger, but his desire to assist her drives him forward.
He expresses a sense of urgency to be close to her, wanting to soak up her positivity and light, which he perceives as something special that he might lose. This highlights the struggle between his self-doubt and the need to maintain a connection with someone he admires deeply, even as he fears being left in a darker place once again.