I have what they (whoever they are) a conversion insufficiency. I received this diagnosis when I was in fourth grade. When at looking at writing or pictures that are close to my face, my eyes do not converge; one eye will and the other with stay the same. And it is almost impossible for me to cross my eyes -a valuable life skill which I will never gain. But such is life. I went to the optometrist, and he gave me special exercises to do. I had to clip a comic block out of a news paper and glue it to a popsicle stick. I practice moving it closer to my eyes and focusing on it. I was very enthusiastic about making this exercise devices, I must have had 20. Needless to say, my enthusiasm soon wained and after a week, I never used them again. My eyes remain the same. The upside is that I can do those magic eye puzzles like no other.
I would venture to say that I have a spiritual conversion sufficiency. If only we could see the bigger picture all at once and see every detail in stunning clarity.