What is the purpose of writing?

This will hopefully help me start writing again, to hopefully get me to see that what I write is not for anyone else but for myself, to grow and see what I can accomplish. So, I will be answering personal questions to myself and general questions of what I believe the purpose of writing is. Now please remember this is all my opinions and I will add other people's work to support my claims sometimes depending on what is being spoke about.
So, if you have any questions or concerns about my writing please speak to me about it; I would love to hear what you believe or even think about my opinions on writing.