Meditation can transform your body into wisdom light, into what is known as the rainbow body of wisdom. Many masters in the history of the Nyingma lineage have achieved this, as can anyone who practices these methods of meditation. The wisdom aspect of our nature exists at all times in each of us. You have always had this nature and it can be revealed through meditation. When you maintain the mind in its natural state, wonderful qualities shine out like light from the sun. Among these qualities are limitless compassion, limitless loving-kindness, and limitless wisdom. --from The Buddhist Path: A Practical Guide from the Nyingma Tradition of Tibetan Buddhism, by Khenchen Palden Sherab Rinpoche and Khenpo Tsewang Dongyal Rinpoche, published by Snow Lion Publications