How did Dumbledore first involve Harry in his plans?

From the moment Harry arrived at Hogwarts, Dumbledore was quietly shaping his experiences. He arranged for the Mirror of Erised to protect the Philosopher's Stone in a way only someone who wanted to find the Stone but not use it could retrieve. He guided Harry toward understanding Voldemort in their private lessons in Half-Blood Prince. Every significant development in Harry's education was, at some level, part of Dumbledore's design.

What makes their relationship genuinely warm?

Despite everything, there was real affection. Dumbledore admired Harry's character — his loyalty, his willingness to die for others, his refusal to become bitter. He told Harry things he told almost no one. The private lessons in Year 6 are among the most tender scenes in the series — an old man and a young one spending hours together, the old man giving the young one everything he has.

How did Dumbledore fail Harry?

By not trusting him with the full truth. Harry deserved to know from earlier that he carried a Horcrux. The argument that this knowledge would have changed his choices is true — but it's also paternalistic. Dumbledore made that decision for Harry, not with him.

What was Dumbledore's greatest gift to Harry?

Not information or power — belief. Dumbledore consistently treated Harry as someone capable of making the right choice. That trust, even when it came with withheld information, was what allowed Harry to walk into the Forbidden Forest when the time came. You can't manufacture that kind of moral courage. You can only trust that it's there and create conditions where it can be expressed.

What does their relationship teach about mentorship?

That the best mentors see who you are becoming before you do. And that the most important thing a mentor can give is not the answer — it's the conviction that you're capable of finding it yourself.