Quote from the Lankavatara Sutra http://bit.ly/azCaUY

"So long as people do not understand the true nature of the objective world, they fall into the dualistic view of things. They imagine the multiplicity of external objects to be real and become attached to them and are nourished by their habit energy. Because of this system of mentation, mind and what belongs to it is discriminated and is thought of as real; this leads to the assertion of an ego-soul and its belongings, and thus the mind-system goes on functioning. Depending upon and attaching itself to the dualistic habit of mind, they accept the views of the philosophers founded upon these erroneous distinctions, of being and non-being, existence and non-existence, and there evolves what we call false-imaginations...

False-imaginations rise from the consideration of appearances; things are discriminated as to form, signs and shape; as to having colour, warmth, humidity, mobility or rigidity. False-imagination consists of becoming attached to these appearances and their names... The five sense functions and their discriminating and thinking function have their risings and complete ending from moment to moment... By setting up names and forms greed is multiplied and thus the mind goes on mutually conditioning and being conditioned. By becoming attached to names and forms, not realising that they have no more basis than the activities of the mind itself, error arises, false-imagination as to pleasure and pain arises, and the way to emancipation is blocked...

By the cessation of the mind-system as a whole is meant, the cessation of discrimination, the clearing away of the various attachments, and, therefore, the clearing away of the defilements of habit-energy in the face of Universal Mind which have been accumulating since beginningless time by reason of these discriminations, attachments, erroneous reasonings, and following acts... Getting rid of the discriminating mortal-mind is Nirvana.

But the cessation of the discriminating-mind cannot take place until there has been a “turning about” in the deepest seat of consciousness. The mental habit of looking outward by the discriminating-mind upon an external objective world must be given up, and a new habit of realising Truth within the intuitive-mind by becoming one with the Truth itself must be established.... With the ending of pleasure and pain, of conflicting ideas, of the disturbing interests of egoism, a state of tranquilisation will be attained in which the truths of emancipation will be fully understood..." (Lankavatara Sutra http://bit.ly/azCaUY )