I really found the preparations touching, and a mark of how dedicated the Trio are to Harry, despite how uncertain their future is.
It's interesting to see this dedication, anticipation, and willingness now, and to see how the events turn later as they find out that Harry was really left in the dark about a lot of things, and how this seemingly wonderful adventure is about to really test the Trio.
"Living is easy with eyes closed, misunderstanding all you see" - Strawberry Fields Forever (The Beatles)
"We're forced to bed, but we're free to dream" - Gift Shop (The Tragically Hip)
I said "Lily, oh Lily I'm so afraid I fear I am walking in the Veil of Darkness"
And she said "Child take what I say with a pinch of salt and protect yourself with fire"