It seems to me that Hannah Arendt's thought is at its strongest( and also its weakest) when it does not confine itself to the world of pure metaphysical abstraction, but rather addresses historical realities and concepts. The Arendt of 'The Origins of Tolitarianism' and of 'The Human Condition' brings a tremendous power of thought to the analysis of phenomena of the real world. In this work there is primarily ' thinking about thinking' and the connection with historical realities, individual personalities is not central. Therefore the reading of the work it seems to me becomes more an exercise in that metaphysical abstract never- never land where nothing can be firmly affirmed or falsified.
It thus seems to me that this text is best read as a kind of poetic inspirational work, that does provide understanding and insight into thinking and the world of the mind, but which does not fundamentally provide ' truth'. My guess is Arendt would greatly object to this definition of her enterprise. And my sense is that in this work what she was really trying to do is make her bid to be among those system- producers who stand at the center of the long philosophical tradition in the West.
I say this when I myself find Arendt an exalted and inspiring thinker, one who inspires me to thought of my own. I will just bring one passage, in my opinion, a key one from the work so that the reader can have a feel of what she is doing.
"If thinking is an activity that is its own end and if the only adequate metaphor for it, drawn from our ordinary sense experience, is the sensation of being alive, then it follows that all questions concerning the aim or purpose of thinking are as unaswerable as questions about the aim or purpose of life."