Sumayya is praying and halfway through she cannot remember washing her arms.

She knows she made wudu, because she remembers standing at the sink. She has no sound, no smell, and nothing she could point to.

On the ruling, that is settled. The wudu stands and the prayer stands, whatever the feeling is doing.

Whether she can act on that today is a separate question, and it is not one a page can answer for her. If she cannot, that is not a failure of understanding and it is not weak faith. It is the thing itself, and lesson six is about who helps with it.