The heart line runs horizontally across your palm and is the top line you will see. It starts at the edge of the palm of your hand on the small side and runs just below your index or middle finger.
According to Cassandra Eason, author of A Little Bit of Palmistry, the heart line is the first to be examined in a reading. It gives us insight into our relationships (including oneself, lovers and friends), our emotions and even our potential for personal growth. It's also about what we "feel about ourselves, others and life," she says, and how we approach our spiritual life and inner world.
In general, the deeper the heart line, the deeper your love and affection. Here are some other ways to interpret your heart line.