Acharya Prashant explains that the human mind consists of two components: the brain and intelligence. The brain is a physical organ with a history of evolution spanning millions of years, carrying imprints of its journey from simple chemicals to complex life forms. This history results in physical conditioning, which determines biological traits. Additionally, the brain undergoes social conditioning after birth, where every experience is recorded as memory. This accumulation of memory is what we call knowledge. Because the brain is material, every experience leaves a permanent mark or deformation on it, making it a product of the past. Intelligence, however, is of a nature entirely different from the brain. While the brain is occupied with objects existing in time and space—representing the past and the future—intelligence operates exclusively in the present. The brain functions automatically, managing biological processes without our consent, but intelligence requires a deliberate state of attention to function. Without attention, the brain naturally drifts into memories of the past or expectations of the future. Acharya Prashant emphasizes that the present moment has zero duration and is not a part of time, just as a geometric point is not a part of space. He further discusses the mechanics of desire and ambition, stating that they require two prerequisites: knowledge and the absence of attention. Desire is always directed toward the future and relies on past knowledge. If one is in a state of total attention in the present, desire cannot arise because attention anchors the mind in the 'now,' where time-bound projections do not exist. Thus, while the brain is a conditioned machine driven by its history, intelligence provides the capacity to transcend mechanical behavior through attention.