In the oddest of ways, I would say that Anne's diary is her direct response to being imprisoned and hidden in the Annexe. It is in the diary whereby we, as the reader, understands how she perceives the changing world in which she lives. Her expression of the loss of her personal freedoms an individual rights is seen through her entries in the diary. It is strange to assert this because while the Nazis had been trying to eliminate all rights of those who were deemed as enemies, Anne's diary proves that on a metaphysical level, the Nazis could do what they wanted, but they were not able to fully stop the expression of personal rights and voice. Although the Nazis were quite forceful in the systematic annihilation of millions, they failed in their overall goal of entirely silencing a group of people, and Anne's diary would be a statement proving this. Anne's voice is only silenced when she is no longer able to write in her diary.
In what is considered the most famous passage of The Diary of Anne Frank, Anne writes of her courage, saying that she can bear a great deal; she expresses, also, her optimism:
It's a wonder that I haven't dropped all my ideals because they seem so absurd and impossible to carry out. Yet I keep them, because in spite of everything I still believe that people are really good at heart. I simply can't build up my hopes on a foundation consisting of confusion, misery, and death. I see the world gradually being turned into a wilderness, I hear the ever approaching thunder, which will destroy us too, I can feel the sufferings of millions and yet, if I look up into the heavens, I think that it will all come right, that this cruelty too will end, and that peace and tranquillity will return again. (15 July 1944)
Anne's youthful optimism, self-confidence, and imagination pervade throughout her diary. For instance, her entry of 2 March 1944 mentions her being in the attic with Margot; although they did not enjoy their time as Anne had hoped, she positively states, "...still I do know that she shares my feeling over most things." One way that she retains these positivie feelings is by minimalizing her world to the garret where she is confined. There, she has generated the relationships that she had when she was free: friendship, a love-interest, parent-child relations, conflict with elders, and time alone for introspection with a confidant that she has created in her diary named "Kitty."