Pel's description of what she did was to be 'mindfully aware' and to 'say no to demons'- unfortunately it isn't at all applicable as she manifested at a very young age and learned to protect herself in such a way that it is instinct. I do not know what it is that Ellana does- and the idea of asking Sina anything about demons leaves me afraid she might faint. Korrin might have some useful advice but-

Getting through to Dylan was difficult enough. Now we've Madame Le Fer herself pushing their side. It takes all I have to keep Korrin from attempting to strangle either of them or he and the Dalish from walking out entirely.