check out our:
"I did not envy him [the harlequin] his devotion to Kurtz, though. He had not meditated over it. It came to him, and he accepted it with a sort of eager fatalism." (3.1)
When it comes to Kurtz, the harlequin seems to have no free will. He does not think (or "meditate") over Kurtz’s purpose but accepts his words thoughtlessly, fatefully. Marlow thinks him an eager fatalist whose blind devotion to Kurtz can only end badly.
"They had come together unavoidably, like two ships becalmed near each other, and lay rubbing sides at last." (3.2)
It seems destined that Kurtz and the harlequin should meet each other.
"The knitting old woman with the cat obtruded herself upon my memory as a most improper person to be sitting at the other end of such an affair." (3.26)
As Marlow chases Kurtz through the woods, the image of the old knitting woman (representing Fate) intrudes on his thoughts. Though it is only subconsciously, Marlow knows he is destined to find Kurtz in the wilderness and bring him back; he is destined to allow the greater evil to win.