It's not a desire, it's a condition, but long time made understood....
Yogis focus their attention on the sound of a waterfall, integrating the cascade of moving water with the element of water, or fluidity, within their own bodies. The letter “AH” visualized at the centre of the yogis’s body is refected by the external apparition of a large watery “AH” to the right symbolizing the mind’s Primordial State. Through contemplative practices the mind opens to its essential nature and is no longer carried away by false views. As the Buddha stated.
Tantric Mural Detail from the Dalai Lama’s Secret Temple at Lukhang via Magic Transistor
The Tibetan Rainbow Body | Photographs, Evidence, and Anecdotes – 21 Grams of the Soul, Light Body, Transmutation or Transfiguration, Padmasambhava, Ati Yoga, The Dzogchen Path, and more | Stillness in the Storm
Krishnamacharya's Original Ashtanga Yoga....... at Home : Janusirsasana : Examples of kumbhaka in Krishnamacharya's 'Original' Ashtanga Vinyasa Yoga Also 'kumbhaka' or Tibetan 'bumpachen'
Gnosis,The Spirit of Tibet - A Journey to Enlightenment. The Life of His Holiness Dilgo Khyentse Rinpoche