The quote reflects Ender's awareness of the significance of withheld information, suggesting that the secrecy surrounding a subject hints at its relevance to him. He recognizes that the lack of transparency often speaks volumes, indicating that there are important truths being concealed. This illustrates his sense of self and the implications of others' actions on his understanding of personal matters.
Moreover, the statement underscores the theme of manipulation and control prevalent in the narrative. Ender's cognitive growth involves unraveling these layers of deception, leading him to question the intentions behind those who seek to keep him uninformed. This journey of self-discovery is crucial, as it not only affects his personal relationships but also shapes his role in a larger, intertwined fate.