I think one of the main purposes of this life is the opportunity to improve ourselves and get closer to our heavenly father. He loves each one of us, he gave us the opportunity to come here on earth, gain experience, evolve, change, make us better and more like him. I think this is not simply to provide our happiness, but to be able to have trials and opportunities to grow.
I think that our purpose here in life and on earth is to grow up as sons of God. God sent us to earth to learn through our failures, through our weaknesses. We really have a lot of things that happen in life. But it is through these moments and through these moments that we can learn our greatest lessons. Jesus Christ is here to help us. When we choose to turn to Him and use His inspiration and help, we grow and learn. And I think that is why we are here.