To understand how the world can be a creation of the mind, it is useful to recognise that our mind has two aspects: ordinary mind and enlightened mind. Ordinary mind, also known in Mahayana teachings as deluded mind, is conceptual, dualistic, and emotional. Enlightened mind — also known as the awakened state or Buddha-nature — is the true and pure nature of the mind. For most of us, the dualistic concepts, unhealthy emotions, and obsessive sensations (particularly strong clinging and craving) of our ordinary mind cover the enlightened aspect of our mind. These thoughts are like coverings that obstruct us from realising and manifesting our true nature — like clouds covering the sun. Consider the difference between how an awakened person and an ordinary person view a flower. When an awakened person sees a flower, they see it through their enlightened wisdom-eyes that are free from the shrouds of duality, emotions and sensations, and that dwell instead in the nature of boundless openness, also known as “emptiness” nature. By contrast, when an ordinary person sees a flower, they see it through the eyes of their deluded mind, which is characterised by duality. Duality leads to attachment and aversion, which, as they become increasingly tight and obsessive, result in the familiar cycle of fireworks and misery.

-- Tulku Thondup Rinpoche