„Authentic happiness is born from using our strengths." The sentence belongs to Martin Seligman, one of the most influential psychologists of recent decades - the man who turned psychology away from treating illness and toward understanding what makes us better. And though it sounds like just another motivational quote to hang on a wall, behind it stands something worth taking seriously.

Seligman argues that happiness doesn't come from pleasant emotions, but from „cultivating what we do best". The difference is fundamental. The feel-good industry sells you peace through rest, apps and quotes. Seligman says satisfaction comes from work - from using your resources to face challenges, not to avoid them.

Psychologist Regina Insa Martínez defines mental strength as the ability „to take control of the situation" and to steer your thinking and behaviour toward the goal, regardless of circumstances. That doesn't mean the absence of fear or frustration - it means keeping your direction in spite of them. The difference between a strong person and one who merely looks calm is exactly that.

What counts as a strength? Not just extraordinary talents. Persistence, curiosity, creativity, the ability to listen, empathy, self-control, optimism - all of it is a resource. Almost everyone has at least some. The problem is that most people don't know which are theirs, because they've been told all their lives to fix their weaknesses instead of building their strengths.

Insa's advice is concrete: set yourself clear values and priorities, step gradually out of your comfort zone, look back at past successes and see which resources you used then. And pay attention to the inner dialogue - the voice in your head telling you that you can't is usually loudest exactly when you can. No holiday will silence it; only work on your own strengths will drown it out.