I have always thought of compatibility as being of two kinds. One wherein, two parts exactly match one another while the other type of compatibility is when one part fits into the other with 'effort' to make the two parts seem compatible, when they are actually not. This principle applies well to relationships as well. When the people involved in a relationship exactly match one another with respect to their attributes, they are compatible in the true sense of the term. By the idea of one person trying to fit into the other, we mean that one of the two people dissolves into the identity of the other. For me dissolution of one's identity into that of the other, which makes the two people appear compatible, is not compatibility. The merger of the two for making up for each other's inabilities and boosting the strengths of one another makes two people compatible. Compatibility between two people is determined by their views on life and their likes and dislikes at large. It is about compensating for each other on understanding each other's strengths and weaknesses. A compatible relationship is indeed rewarding in terms of the physical as well as psychological well-being of the individuals involved in it. Individuals compatible with each other feel affection towards one another and take interest in each other's lives. Most importantly, they trust each other. Respect for one another is an essential ingredient of compatibility in a relationship. Giving each other time and space and a due regard to each other's emotions makes two people compatible. They believe in their compatibility and in the strength of their relationship. Understanding is a vital component of a healthy relationship. A clear understanding of each other's personalities makes the two people compatible. An understanding involves the recognition of the strengths of one another and the readiness to make up for each other's weaknesses. Understanding a person comprises true understanding of the feelings of the other person. The people involved in a relationship should bear in mind that every human is bound to have his/her own set of positive and negative qualities. The positives need to be encouraged while the negatives need to be worked upon. For the two involved in a relation to be compatible, the comprehension of a person's weaknesses must not follow ridicule. It should rather be followed by the readiness to work with the person to fight his/her inabilities. The preparedness of a person to work mutually with the other individual involved in the relationship, leads to a compatible couple. There are many factors that contribute to compatibility between two people. One of the important factors for compatibility is their culture. It is their social and economic background that plays a vital role in compatibility. The environment in which two people are brought up, their family and their value system play a major role in their being compatible. The educational backgrounds, career objectives and creative skills of the two people should match so that they are compatible with each other. The compatibility between two people also depends on their intelligence and emotional quotients. It is their way of looking towards life that makes them compatible. Their principles and beliefs, their values and their approach towards living are determinant of their compatibility with one another. Every human being wants to be loved. It is human nature to feel the need to be cared for, to have a close friend and have someone to live for. Love might happen at first sight. It may be the result of mere physical attraction and the attraction is bound to be short-lived. Experts say that compatibility is not something one has; it is something one has to make. According to researchers working in psychology, the building of compatibility is a process, it is a willingness to work and it is basically an attitude that needs to be developed to make a relationship healthier. According to experts, love is a blend of biology and behavior. It is certainly in a person's hands to shape that love by adding to it the very essential aspect that is called compatibility. People talk of zodiac signs and horoscopes, which are believed to determine the compatibility between two people. They give different theories that are considered to define one's compatibility with another. But in my view, it is the feelings which the two people bear for one another, that decide how compatible they are.