Blockquote he somehow equates this with God implies shirk. There are many teaching from different people across the world. Islam differs from many other religion and other's teaching on one major base. "SHIRK".
Consider Christianity and Islam, so much is in common between these two but the major difference comes from SHIRK. So do you want to adopt that?
There might be things that this writer/ author have told might got catchy, with no offense to any one ... these are basics, which has been told 1400 years ago, if not through Hades through actions done by Prophet and his followers. If you can follow what has been told perfectly without having to take more in your plate and not harming, troubling or having malice for any one and lead a truthfull life with 5 times salat, fasting, Quran,charity and Haj and clean earning for your self and your family thats more than enough.