When I am deeply involved in a book, the characters are my everything. I love, hate, and side with or against them. I pour my heart and soul into their outcomes and become more invested in their emotional well-being than my own. I fall into them. That is how a great character is written, like a temporary lover, enemy, or bestie.
I know I’m enjoying the book I’m reading if I’m unable to stop myself from yelling at my husband if he interrupts me. For that brief tryst with the characters I meet, their world is more real to me than my own.