Hi All. I am sure this has been covered before but I couldn't work out what to type into the search box to look. What is the lace of the One Power that Perrin's group sees in the sky in WH? I believe that the Asha'man and Aes Sedai could feel it.

Do you mean in TPoD? That's Elayne/Nynaeve/and the Windfinders using the Bowl of the Winds.

Sorry yes POD. How is it that the asha'man can sense it too?

Because when the Bowl of Winds was activated, it used both saidin and saidar to accomplish its work, even though the circle activating it could only channel saidar.  Re-read TPoD ch 5.