It seems that 2 questions are asked more, and answers desired more, than any others. You can take these two questions and break them down into any further question we can think of. Leads to why life, because without life, there is no freedom. Leads to how life, because without the application, freedom is of no use to us. These 2 questions are the foundation of two very profound ways of 'thinking', even though 'thinking' is the wrong term.
Science asks the 'How' and philosophy asks the 'Why'.
It also seems that individuals tend to stick with one question, while taking the answers from the other side, to support their central belief system. This leads to us having millions of 'self-religions' or 'beliefs', instead of having a few 'good and agreeable' ones. We all have fundamental beliefs, even if that belief is that we hold no beliefs. Upon these beliefs we build our lives, our existence and to an extent, our 'self-realities'. Consider the possibility that the reason for such diversity in disagreement we find in the world today, is due to us seeking 2 answers instead of 1, for the 2 fundamental questions, why and how.