I think what makes The Tardis so compelling as a storytelling device is its strength as a metaphor for our own human condition. Like us, it’s larger — much larger — on the inside than it appears on the outside. Infinite. Surprising. Confusing. Contradictory. And extraordinarily, strangely beautiful. And also like us, our minds, our ability, our imagination, it can take us anywhere in space or time.
Finally, and just as it is with Doctor Who and his companions, the most important time and place is here, and now, wherever we are at this particular moment in time.