In simple words
The head line runs across the middle of your palm, starting between thumb and index finger. Palmistry links it with how you think.
How to recognise this one: Where the head line and life line begin, near the thumb side of your palm, a small open space separates them.
What it means
You are independent and confident in your own judgement. You may make decisions quickly and enjoy doing things your own way. The wider the gap, the more outspoken and adventurous you tend to be.
Growth
Before a big decision, ask one trusted person for their view. Independence is strongest when it chooses to listen.
Palmistry is a tradition of reflection, not a medical or scientific reading. Lines change over a lifetime, and no line predicts illness or the length of a life.