There are many types of criticism around, such as reviews written by theatre critics or criticisms of forms of literature. Essentially, criticism is nothing more than a way of thinking about something and offering feedback on it. That said, criticism has negative connotations in the eyes of many people which is why the term constructive criticism has been coined. If someone were to say “I don't like your hat,” for example, then this is not very engaging criticism even if it is an opinion that is honestly held. A more constructive approach might be to say, “I prefer it when you don't wear your hat,” or maybe, “I like the way your other hat looks.” As such, constructive criticism still expresses the same feedback as other types of criticism but seeks to do so in a way that does not jar or offend our sense of pride.
To many people, the purpose of life is very clear. It has been laid out clearly either by their parents, teachers or religious leaders. For others, it is much harder to work out. In fact, many philosophers have argued for centuries about what the true purpose of life is. There is a distinction between what the purpose of any life is and what it means to an individual, of course. Some people believe they have found a purpose in their life if, for example, they do a job that they find fulfilling. To others, the purpose of all human life is to work towards a higher purpose that is bigger than any individual. Broadly speaking, the latter is a spiritual interpretation of a life's purpose.