Sky weaving

"The practice of Sky Weaving is called ‘Namkha’ in Tibetan, which means ‘sky’ or ‘dimension’. In Tantra, we talk of the ‘skies’ of the five elements: earth, water, fire, air and space. Each element is a sky (dimension) of meaning, and each element is associated with an emotional confusion and a liberated energy. This meditation practice involves weaving ‘skies’ of coloured wool, which link our energy with the energy of the elements, through the Tantric craft of sound and vision."

http://aro-ling.org/sky-weaving.html