Ash didn't ask which path the Sword Maiden was planning to choose—he knew that the Sword Maiden would find it difficult to decide for a while.
Serenity is the ideal of the past, while tumult arises from a restless heart. The two paths represent two desires of the Sword Maiden that cannot coexist. It's like when one was young and thinking about which of the top universities to attend in the country; the Sword Maiden indeed needs some time to handle this sweet dilemma.
However, fate is like a knife, and the human heart is unpredictable. Even if the Sword Maiden makes a decision, she has to see if reality agrees with her decision. Perhaps the Sword Maiden has made up her mind, but on that side, fate insists on making a joke with her: when she wants to take risks, her family needs her care; when she seeks stability, she's pushed into the limelight by unexpected events...
In contrast, the Witch's Rainbow Blessing is more stable:
"Black and White Witch"
