Quote by Arthur C. Clarke
He did not know that the Old One was his father, for such a relationship was utterly beyond his understanding, but as he looked at the emaciated body he felt a dim disquiet that was the ancestor of sadness.

Summary
In this quote, the speaker reflects on their lack of knowledge about a significant familial relationship. The "Old One" is revealed to be their father, a fact they were unaware of. Although they cannot comprehend the depth of such a bond, there is a vague unease and a precursor to feeling sadness as they observe their father's frail and weakened state. This reflection illustrates the complexity of familial connections and the innate human desire for a sense of belonging and understanding in our relationships.