Writing in 2004, Tolle looks back over the six years since his book was first published. Tolle feels that his book The Power of Now continues to make an impact in changing “human consciousness” (cxxxv). He thanks his readers for sending him messages that share how his work affected them personally. Tolle reminisces about this book’s original publication by a small Vancouver-based publisher, and he remembers hand-delivering copies to local bookstores. He recalls that the book became an “underground bestseller” before reaching fame through Oprah Winfrey’s reading recommendation, which helped it enjoy worldwide success (cxlviii). Tolle receives letters from a variety of readers, including psychotherapists who feel that his work is helpful for their patients. He claims that these messages often discuss the “inner peace” and other benefits that come with living in the present moment and releasing attachment to ego and identity (clv). He acknowledges that while the book has many fans, it also has many critics who find it strange or “meaningless” (clxix). Tolle feels that since his work is critical of the ego and of “incessant thinking,” it is sure to prompt “egoic reaction, resistance, and attack” from people who identify strongly with their own thinking and egos (clxix).