Our natural inclination as human beings is to feel loved, wanted, special... meaningful. You resist that desire to instead feel unpurposed, separate. Is it because you're afriad? Are you scared because you know that if you feel that way, if you hope there is a purpose, that you will decide again later that there is no purpose, and then have to feel again the pain of not being special?
I think I should define what I mean by a purpose with regards to the universe... designed, planned, created with some intention unknown to us by some force, energy, being of which we are unaware. This differs from what you believe mostly in that although I don't know the purpose, I do not believe the universe just happened, by accident or sheer chance.
Humans have flawed perceptions. As I've said before, we have mathematical proof that time is the fourth dimension, yet we can't perceive it as that; we can only experience time at one fixed point and move forward along it at a fixed rate. To me, this proves that there is much more to the picture than we are seeing. If I had to guess whether there was a "purpose" behind human/Earth's/the physical universe's existence or not, then I would assume there was some plan or intention behind it. It seems impossible that everything could just spring out of the void of space and turn into what we see today by no action of a higher power, consciousness, energy. If it did come from a higher source, why would all this energy be expended on creating what now exists without some reason according to that creator?
So as you can see, I do more or less agree that the universe exists for no reason or meaning that a human could conceive of, but I firmly believe there is a purpose and something that created everything we perceive with that intention. Therefore, I believe there is a reason for human beings, for plants and animals, for water and stars and meteors. I believe each part is valuable and contributes to a fixed system that was created with the intention of a higher consciousness.
Now, logic aside (since human logic isn't worth much anyway), I personally believe that everything that we can perceive and all that we cannot are unified parts of this higher consciousness' energy. I can't defend this claim with logic or data, but I think when you realize how connected everything is on a molecular level (exchange of electrons, for example) and when you understand how interdependent humans (and everything in the universe really) are, such connections might persuade you to believe everything is a part of a larger whole and all is one.
