The quote from Philip Pullman's "The Subtle Knife" implies a compelling choice between acceptance and rejection. When a witch extends her affection, it symbolizes an opportunity that carries significant implications. Accepting this love can bring fortune, while declining it may lead to unfortunate consequences. This dilemma emphasizes the necessity of making a decision, as avoiding a choice is not an option.
In essence, the quote illustrates that every choice comes with potential risks and rewards. By highlighting the importance of taking a stance, Pullman suggests that one must actively engage with the opportunities that life presents, especially when they are intertwined with elements of magic and fate. Ignoring such offers could lead to regret and unforeseen hardships.