We believe reaching a major goal (like a weight target or financial milestone) will bring lasting joy. However, due to brain homeostasis, we quickly return to our baseline. This "arrival fallacy" reveals that fulfillment is found in the progress and journey, not the often-hollow destination.

We mistakenly believe external goals grant us permission to feel happy. In reality, happiness is a neurochemical process our brain controls. Understanding this allows one to short-circuit the endless chase for external validation and learn to generate fulfillment on demand.

Many successful people maintain their drive by constantly focusing on what's missing or the next goal. While effective for achievement, this creates a permanent state of scarcity and lack, making sustained fulfillment and happiness impossible. It traps them on a 'hamster wheel of achievement'.

We often seek a consistently high standard of living, but happiness is most intensely felt as a contrast to a previous, lesser state. A man blind for 46 years found more joy in a drab office carpet than most people find in a perfect sunset, because the contrast was so profound.

Don't confuse fleeting positive emotions with true happiness. Feelings are merely evidence of well-being, not well-being itself. A more durable and achievable form of happiness comes from systematically cultivating its three core components: enjoyment, satisfaction, and meaning.

The feeling of progress is a more powerful driver of happiness than one's static position. Being on an upward trajectory, like becoming rich, is more exciting than being rich. This explains why a rising star can feel better than a stagnant superstar.

People mistakenly chase happiness through spending, but happiness is a temporary emotion, like humor, that lasts only minutes. The more achievable and durable goal is contentment—a lasting state of being satisfied with what you have. Aligning spending to foster long-term contentment, rather than short-term happiness, is key to well-being.

Pleasure is derived from the contrast between your current state and a previous one. A person eating Michelin-star meals daily gets less enjoyment than someone who eats stale bread one day and a good meal the next. When everything is consistently great, nothing feels great because the necessary contrast is missing.

Our brains are wired to respond less to constant stimuli, a process called habituation. This is why the joy from a new job, a great view, or a loving relationship can fade over time. What was once amazing becomes normal, diminishing its impact on our daily happiness.