The universe cares. If you can't stomach the idea of a peaceful, luminous guardian angel, you can make it a shady spirit which the cunning human might bind to her will. Or you can call it Nature, Force, etc., and make it a matter of the humans learning to get in tune with this power by living better. Make it just a little bit dangerous. Telling people to eat lots of vitamins, or to do unto others as they would have done unto them may be dandy advice, but it's just not that exciting.
Wonder requires risk.
Only by keeping a surplus of good karma will good energies continue to flow his way. The purpose here is to make the endeavour just scary enough to be challenging, enlivening, and to leave the reader at the end of the day feeling strong, capable, and at peace because of the risks she has safely overcome with the help of her spiritual ally. Horror movies and good old fashioned religious terror will have to fill the void. Let common sense have the day. If any catch phrase summarizes the entire message of the New Age movement, it is the Power of Positive Thinking.