Okay Christians, something to make you think, why are you a 'follower'?

i want the truth i want the "how" to our existence but i also want the "why" to it as well.EDIT when i say why i mean out of all the ways the universe could have been expressed why this way? we could have been giant birds on an ice planet we could have been wolf people why this particular way at this particular time in this particular part of space?what eliminated all those possibility's to the deterministic finite universe we perceive?