The concept of an annulment is very simple to understand. It simply means that the marriage was not valid. However, one question still needs to be answered, namely whether an annulment affects the status of the children born during the marriage. The answer is that children who are born to a couple, whose marriage is later annulled, are still deemed legitimate. Another fact to consider is that it is against the ways of the Church to judge children because of their parent's marital status.
Marriage is a sacred act that the church takes very seriously.
The bond of marriage should be maintained at all costs. However, the bond of marriage has to be a valid bond. Divorce is used as a last means to end a valid marriage. However, before a couple gets divorced they should first find out if their marriage is invalid and susceptible to an annulment.