Nothing impacts your life and the direction it takes more than the person who you chosen to share it with. They can either have a negative, neutral, or positive impact on your life which is the one we all want.

From the high divorce rates it is clear that people choose the wrong partner. The reason why you will marry the wrong partner is because people are trained by society to choose a partner based solely upon short term romantic feelings rather than take a long term view.

It is the legally or formally recognized union of two people as partners in a personal relationship (historically and in some jurisdictions specifically a union between a man and a woman). However in practice it is far more than that.