I need help to know what this sentence means? I have trouble understanding phrase "just snap right back to your book"
Sometimes it feels as though your attention has wandered for just an instant. Then, with a start, you realize that the book you were holding, the red plaid cotton shirt with white buttons, the favorite black jeans and the maroon socks with an almost-hole in one heel, the living room, the about-to-whistle tea kettle in the kitchen: all of these have vanished. You are standing, naked as a jaybird, up to your ankles in ice water in a ditch along an unidentified rural route. You wait a minute to see if maybe you will just snap right back to your book, your apartment, et cetera. After about five minutes of swearing and shivering and hoping to hell you can just disappear, you start walking in any direction, which will eventually yield a farmhouse, where you have the option of stealing or explaining. Stealing will sometimes land you in jail, but explaining is more tedious and time-consuming and involves lying anyway, and also sometimes results in being hauled off to jail, so what the hell.
The Time Traveller's Wife — Audrey Niffenegger