How is the change in oxygen and carbon dioxide ratio through deep breathing connected with the awakening of the Kundalini?

According to Osho, deep and fast breathing shifts the inner chemistry toward oxygen and away from carbon dioxide, replacing lethargy with vitality. Oxygen amplifies life-force, breaks the pattern of inner sleep, and stirs our dormant energies; this surge of prana catalyzes the awakening of Kundalini, the coiled potential within, enabling energy to rise and consciousness to brighten.

Breathing deeply fills you with more life-giving air and less stale air, waking your sleeping inner energy so it can rise.