The veil or mask is made up of Tamas and Rajas. The practice of Pranayama removes this veil. The true essence of the spirit is seen after the curtain is lifted.
The Chitta is composed entirely of Sattvic particles, but it is surrounded by Rajas and Tamas, just like a fire is surrounded by smoke. Pranayama is the most effective purification technique. Pranayama brings innocence, and wisdom shines brightly. The practice of Pranayama annihilates the Yogi's Karma, which covers up discriminative experience.
The essence, which is luminous by nature, is obscured by the magical panorama of desire, and the Jiva, or human spirit, is directed towards vice. This Yogi's Karma, which obscures the Light and ties him to reincarnation, is gradually diminished by Pranayama practice, and finally extinguished.
Yogyata Manasah Dharanasu cha Yogyata Manasah Dharanasu cha Yogyata Manasah Dharanasu cha Yogyata Manasah Dharanasu (II-53). Since the curtain of light has been lifted, you will be able to focus your mind beautifully.
When the distracting energy is replaced, the mind would be as calm as a flame in a windless spot. Pranayama is a term that is often used to refer to the inhalation, retention, and exhalation of breath as a whole, and other times to refer to each of these separately.
Breathing would be reduced while the Prana Vayu is in Akasa Tattva. It would be simple to stop breathing at this stage. Pranayama will gradually slow down the mind's speed. It will also trigger Vairagya.
You may also want to read more about Pranayama and Holistic Healing here.