Why?
Yes, every philosophically inclined person comes to a point in her life where she is struck by the barren vastness of existence. This is where philosophy begins, with the question "Why?". FAQTA would recommend you to read the answers to the What is the meaning of life? and What is the answer to Life, the Universe, and Everything? FAQ:s and elaborate.
If you are not a philosophically inclined person, FAQTA can only congratulate you on producing an intelligible word without any spelling errors. Very good! Now try a whole sentence, it is not as hard as it seems.