First off i want to apologize for not getting to this sooner i honestly missed it. I also want to apologize if i came off as a jerk a second ago but its tough being bogged down by so many responses. Let me now address this.
Love is, as all emotions are, a chemical reaction in the brain. However the feeling of being in love and being loved means more to me than just that as it does to all people. its just a wonderful feeling and very difficult to explain. Sadness is basically the same. Life is described be many different factors such as thermoregulation and such but thats not what youre really talking about. Life is just what it is. Life. living, feeling, experiencing, laughing, crying, and making the most of every second on this earth. As far as any divine master purpose for any one life or life in general, no i dont think one exists. The only "purpose" of life is to live and reproduce but i take into account the human experience to summarize a human life. And i think any answer to this question is right. Its a tricky subject with no right or wrong answer. interperet it how you do.
i addressed purpose above sorry.
As for the rest i hear this alot. The basic question for atheists that if all that happens when we die is we decompose then whats the point of doing anything? Thats a strange way to look at it because to me that translates to that we should try to make the most of every damn second because you only get this one life. I think that the knowledge and experiences you gain in life are what they are at the moments of experiencing them, and they live on through the people you interact with in life. When Abraham Lincoln died do i think he went to heaven? no. do i think his life was meaningless? absolutely not! His words, experiences, and actions live on through history and have impacted the world today. The same goes for everyone whos ever lived. Your live on through your friends, family, and others. Youve only wasted your life if you havent shared it with others. Thats my idea of an afterlife. Being remembered and living on through future peoples memories.
What value does life have for you, if mankind's existence was just some random occurrence? If you're going to say that we give value to our own lives, then what good is that value? Are you going to say that we should place value upon that value? What good is that? Isn't it ultimately pointless to keep placing on anything when that same value is meaningless in the end? Why do anything? Is just because we can?
Life again has extreme value to me because i believe that this is the only one i get. 75 or so more years if im lucky and thats it. Done. game over. Life has value because i can smell, i can taste, touch, see, feel, laugh, love, cry, and everything else that comes with being alive and more specifically human. What does it matter if we were a random occurance? i dont see how that deters lifes value in any way. I dont think we give value to our own lives so much as we recognize the already existent value of it. At least thats my opinion anyways again this isnt the "atheist" view this is my own though im sure most would agree with most of this. Sure, why not do stuff because we can? itd be a waste not to.
Free will by definition is being able to do whatever you want to do within the scope of what you can do. for instance i cant have the free will to shoot lazers from my eyes because that isnt within the scope of my available options. Thats about it. my friend is actually reading an interesting book that makes the case that free will doesnt actually exist because of some time delay in our brains processing or something i dont really remember. but yeah thats about it