I'm not exaggerating about having to rebuild the thinking machine in each new place. Start with a bit of fiction, eventually you follow the story. Then to the nonfiction, philosophy usually, and once that's in hand, pick the work back up. My notion was that I could travel with the books in arm's reach, like Autolycus or Dr. Who in his TARDIS, but apparently, if there is to be a journey, the mind must put the book down, and then make the journey. In fairness, this is Balkan busses and second-class rail, not the Concorde. But perhaps it's better to learn that way. And Prospero does break his staff and throw his books overboard before he leaves the island. (Or intends to.)
And not just to read and annotate to do things, or even to keep the mind engaged. The originary force of these ideas and objects. Discovering essential things, and making note of them.
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Interesting, the basilica for the pope's burial apparently has a close Jesuit connection. Loyola's first Mass was there, Christmas 1538. At the same time, it's not the Paris basement church of the avowals. Roma locata. [sic]
Signa, te signa tangis et agnis / Roma tibi subito motibus ibit amor...