Signal refers to the clear, purposeful, and directed energy that guides us towards our goals, values, and desires. It's the opposite of noise, which is the distractions, interruptions, and irrelevant information that can derail us from our path. The term "Signal" is used because it evokes the idea of a clear and strong signal that cuts through the noise, much like a radio signal that stands out from the static. In this context, Signal represents the clarity, purpose, and direction that we need to navigate our lives effectively. Signal is not just a concept, but a state of being that we can cultivate through intentional focus, prioritization, and mindfulness. When we're in a state of Signal, we're more productive, creative, and fulfilled because we're aligned with our values and goals. In the context of this book, Signal is the antidote to the distractions and interruptions that can derail us from our path. By cultivating Signal, we can overcome the noise and live a more purposeful, fulfilling, and happy life.