Feelings are chemical/hormonally initiated primitive motivators for the organism to behave/act in a way that tends to gain an upper hand in the gene pool race. Nothing more, nothing less I am afraid.
Same basic principals apply in all animal kingdom. In the case of Homo Sapience a more advanced brain has put us in a more advanced social system that to a certain extent blurs out the basic primitive instincts or puts a lid on them. I believe that is bad for us in many ways, but thats another topic.
There are no inherent meaning to our lives besides the drive to survive and reproduce. The rest is a product of the agonizing mind of a creature that evolution gave the ability to predict its own death.
Fire away at will..
