What it shows
A double life line is considered a very protective sign. It shows extra vitality, resilience and support from family, a partner or a guardian figure.
Partial sister lines
A sister line along only part of the life line gives special strength during that period of life, often during a difficult time.
Line of Mars
When the inner line is strong and clear, it is also called the line of Mars, linked with courage, energy and the ability to recover quickly.
Interpretation
People with a sister line often bounce back from setbacks and have someone dependable at their side.