Philosophy, by definition, is a critical study of fundamental beliefs and the grounds for them. It is a method of inquiry, which requires the subject to be complex, cohesive, and significant. The approach that is used to study a subject is the basics of philosophy. Unlike other disciplines, philosophy does not have any one particular subject matter. For example, the subject matter of mathematics is the relationships between numbers. Philosophy is a path to thinking in depth about something. We philosophize about things that cannot be easily answered or proven.
One of the greatest questions philosophy tries to explore is that of the meaning of life. The meaning of life may be important to some and never thought of by others. Regardless, it is a fascinating subject to examine. In the search for the meaning of life, one may turn to three different kinds of questions that might motivate them. These questions represent three different levels of thinking about the meaning of life. One could find their answer at any one level or amongst them all.
The first type of question one may ask during their search for the meaning of life is a cosmological question. Cosmological questions deal in issues with regard to the universe or the much broader scheme of things. "Why does the universe exist?" is a good example of a cosmological question. The concerns with cosmological questions are relevant to the entire universe. These questions address the meaning of life on a very grand scale and search for an answer that applies to this grand scale. A satisfying answer to this type of question would take into consideration all things known and unknown about the universe, and it would seek to explain the meaning of life within these enormous boundaries.
Another type of helpful question would be an omni personal or impersonal question. "Why do humans exist?" is a type of impersonal question. This type of question is to be answered with regards to a broad belief or reasoning.