Acharya Prashant explains that true health and spiritual well-being are synonymous with the state of deep sleep, where one is completely free from the interference of the mind and body. He describes health as a state of rest so profound that one is untouched by external events, allowing the internal systems to function smoothly without the ego's meddling. Just as the heart beats and lungs breathe without conscious effort, a healthy person remains in a state of 'deep sleep' or equanimity even while the mind and senses perform their duties. He emphasizes that this state requires immense trust and surrender to a higher order, which he refers to as the 'unsupervised' creation of the divine.