because I am an experiential learner, the senses appeal to me. I guess I have to learn the "hard way", if the hard way means I rarely take anyone's word for it. I have to actually experience a thing myself. Entering a personal relationship with God was no different.
I had to have a very real experience with Jesus, and many to follow, in order for my belief to grow deep and wide. God was patient with me and I am grateful. He knew me and loved me right where I was and was not offended by my need to EXPERIENCE Him instead of taking stories at face value.
As time has gone on and my heartfelt devotion has grown, I have become more of an embodiment of Him and less of myself (although I know there's a lot of me left). This is a supernatural progression of our relationship.
Since He is the Light, IN HIM we become the same light, His radiance casting out our shadows (sin), as we turn more from what we learn is not like Him (see verse 9.)