“Well, Voldemort’s going to try other ways of coming back, isn’t he? I mean, he hasn’t gone, has he?”
“No, Harry, he has not. He is still out there somewhere, perhaps looking for another body to share… not being truly alive, he cannot be killed. He left Quirrell to die; he shows just as little mercy to his followers as his enemies. Nevertheless, Harry, while you may only have delayed his return to power, it will merely take someone else who is prepared to fight what seems a losing battle next time — and if he is delayed again, and again, why, he may never return to power.” (Harry Potter and the Sorcerer's Stone)
The second may has the meaning of 2 below, while the first may seems to be 1. But it is within a while clause that has the meaning of although, it’s not clear for me. What does the first may mean?
- used to say that something is possible
- used when admitting that something is true before introducing another point, argument, etc.