I realised that reading was the key that opened the door to secret lands, strange places and the worlds behind other people's eyes.

We read to find out what the world is like, to experience lots of lives, not just the one we live. If it is true that our lives are chaotic and we crave a shape, stories are the shapes that we put on experience, containing all the wisdom in the world. We can even choose what kind of wisdom suits us.

I realised that reading was the key that opened the door to secret lands, strange places and the worlds behind other people's eyes.

But, in the end, the books that surround me are the books that made me, through my reading (and misreading) of them; they fall in piles on my desk, they stack behind me on my shelves, they surprise me every time I look for one and find ten more I had forgotten about. I love their covers, their weight and their substance. And like the child I was, with the key to the world that reading gave me, it is still exciting for me to find a new book, open it at the first page and plunge in, head first, heart deep.

That's what reading was for my mother, and became for me - a way to escape, a private time machine, a place that began with moral instruction but soon morphed into empathy and imagination.

That's what is so precious in reading this way - you can plumb the depths of another's experience while sitting still with a book in your hands.

It was disconcerting for the novel to seem so different when I re-read it. Of course we are a different person each time we open a book to read it again; we can never really experience it in the same way, just as we can never step into the same stream twice.