As a full fledged product of 'the system', the concept of being mindful was initially quite confusing to me. Even after I thought I 'got it' the seductive pull of the matrix kept, and still keeps, pulling me back into the polar opposite of mindfulness.
The best description I have found of the process of being engulfed by, and lost within, the system is Lao Tzu's famous "Ten Thousand Things". Those three words, and his Tao Te Ching, so aptly describes the whirling dervish of (modern) insanity and the tearing apart of our 'self' in servitude to the distractions of the master of insanity.
The following essay by Joe Withrow, aka Joe Galt, does an excellent job of describing the art and practice of Mindfulness. At some point over the next few days I urge you to devote ten minutes of your time and fall into Joe's piece.
Please click here to read "The Majesty of Mindfulness".