It's just as Uruk and Thirdy said, this cave will indeed pose a challenge to him.
The breeze coming from the depths of the cave carries potent sword intent that's neutral. Confronting it is a test for every swordsman who came here, proving their vision and their path were true.
'The Instructor was kind of vague with his explanation.' Cedric mused inwardly, 'He said that I will need to 'confront' the breeze to sharpen my sword. He didn't specify what kind of 'confrontation' he's talking about, but I'm guessing that he did that on purpose.'
'The first instinct of anybody who experiences this is to pick up their sword and 'contend' with the breeze. Clashing with it could figuratively 'sharpen' their sword. I don't think that's necessarily wrong but...that method is too linear. There should be a deeper meaning behind it.'