Tiwaz, literally The God, Tyr; esoterically justice, sacrifice. Tiwaz is a warrior rune named after the God Tyr who is the Northern God of Law and Justice. Tyr is related to the North Star (Polaris), around which the stars in the nothern night sky appear to rotate. Ancient seamen used Polaris as their main navigational aid on their long journeys, and the symbol of an arrow pointing upward was perhaps created in reference to this. The rune symbolizes the positive ordering of the cosmos and humankind through law and justice and our moral compass. Chaos comes to order through the attributes of awakened consciousness.
Tyr is one-handed God with a long history, who sacrificed his hand to trick the wolf, Fenris, into being chained. Tiwaz is victory according to the law of accumulated past right action. To rule justly, one is asked to make many self-sacrifices, and Tiwaz can develop the power of positive self-sacrifice and temper over-sacrifice. The belief that courage and a right cause carries the day is governed by Tiwaz. It is the common justice of the people rather than the use of law by tyrants (a word that uses Tyr as a root). (Source: runesecrets.com)