Earth has chosen to be light, and it is due to transcend the third dimension in the near future.  Humans, have to evolve with there planet and there isn't much time.  That is the reason for so many lightworkers on this planet from so many places in the cosmos.  Most of us are on a mission to elevate the consciousness of humans, to bring in love and light, and a better understanding of the universe as a whole.

Every lightworker here, brings with them a unique piece of the universe to the Earth. And as an incarnated human, all the things here we are prone to, just like everyone else.  Just because we choose light, and work for light doesn't mean we are not susceptible to all the pitfalls,  distractions, and everything else plaguing the world today.  We came here to make it better, so that means we have to experience it, to know how it truly is.

Think of it as a big family circle of light.  The commonality is the will of Grace.  Bringing knowledge here is a key factor in the perpetuation of the enlightenment of the whole, and it's consequent evolution.  There are many functions to serving light, and theses are just a few.  Some of us came here to transmute human karma, to awaken others, to wage war on darkness, to heal, and many many other things.  Grace usually sends in the best qualified for specific jobs.  The universe is like a tapestry, and each one of us is merely a thread in the fabric.