I have mentioned in various posts why I parted from Christianity. However, one thing just continues to bug me -the Trinity. It is to me the weirdest thing imaginable, but it is accepted by millions, most of whom I believe are as puzzled as me if they were honest.
It is a big subject so let us start with one factor. Son of God.
Son has biological, legal and social meanings, but what does it mean here? Why would it be considered as making any sense at all?
Most religions conceptualize "God" is several ways at once.
There is "God" the over-arching omni-deity that we humans cannot comprehend.
There are any number of individual ways this omni-god can be expressed within the world around us. Through sexuality and procreation, through gathering sustenance and finding shelter, through healing injury and disease, and through visions and manifest destiny. Many religions give these individualized expressions of the omni-god or "godhead" their own names and stories and personalities to help people understand those particular expressions better.
In Christianity there is the 'omni-god' that is beyond our comprehensions (God the "father"), there is the expression of that omni-god's spirit and intention for us in the form of a specific human being (Jesus the Christ), and there is the expression of that omni-gods spirit within each of us (the "holy spirit").
It's not that there are three Gods. It's that there is one God with three different and distinct manifestations within our experience and understanding of the world. There is the God above and beyond humanity, God as a human being come to and for humanity, and the God that dwells within each of us.
This is how I understand it, anyway.