What are the three major lines?

Three lines specific refers to cross, star and lines.

[1] in the palm cross lines composed of two "short lines cross, its good and bad meaning varies according to the palm part.

[2] in the palm star grain by three or more than three "short lines cross," meaning is in the palm according to a part of the good or ill luck and vary.

[3] island lines appear in the palm of the "big five lines" on, usually has a bad meaning, good or ill luck effect depends on the line.