KORU
The spiral is a Koru, represents the fern frond as it opens bringing new life and purity to the world. It also represents peace, tranquility and spirituality along with a strong sense of regrowth or new beginnings.
The Koru is also often associated with nurturing so when interlocked with others is frequently used to represent the strength and purity of a loving relationship within a family.


TWIST
The twist with its crisscross form represents the many paths of life and love and as such is regarded as the original eternity symbol. The single twist in particular shows the joining together of two people for eternity. Even though they sometimes move away from each other on their own journeys, they will always come together again sharing their lives and blending to become one. It tells how the strength of bond of friendship, loyalty and love will last forever.
The double and triple twists have a similar meaning but refer more to the joining of two peoples or cultures rather than individuals.
They also refer the the three baskets of knowledge.


HEI-MATAU
These very stylised fish hooks represent strength, prosperity,abundance, fertility and a great respect for the sea.
It also is said to provide good luck and safety when traveling over water so is often worn by travelers.
Hei-Matau are also symbols of power and authority which are held in great reverence by the Maori people.
They were used as a practical tool for fishing and were often decorated as a sign of respect for the creatures of the sea.
There are many styles of Hei-Matau from the true hook designs to the more ornamental styles which became treasured heirlooms for generations following.


HEI-TIKI
The Tiki is a very ancient symbol and is by far the least understood so there are a number of legends about its meaning.
Some say he came from the stars and that he was the first man of the world. He is also often depicted with webbed feet which suggests a strong link to the creatures of the sea.
Tiki was respected as the teacher of all things and the wearer of this symbol is therefore seen to possess clarity of thought, loyalty, great inner knowledge and strength of character.
The Tiki is regarded as a good luck charm when worn and in some areas is also regarded as a fertility symbol.

Source - Internet