I have been working on my different kicks for Taekwondo. These kicks are very exact when it comes to the stances, the position your knee takes, etc. So it's good to work in front of a mirror.
Now here is the interesting thing. I have been doing some kicks slowly to develop strength and technique. In these exercises, it is good to use a pole to lean on so you can focus everything on your legs.
I have an old broomstick that I use for this. That's when I noticed how off-center both my stance and my knee position actually were.
See, as long as I had only my reflection to look at, I could correct the kick some. But as soon as I brought the broomstick into view, I could see that compared to that straight stick, something was off, way off.
And it wasn't the broom stick.
That' brings us to Hebrews 4:12(NIV)
"For the word of God is alive and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart."
As long as we judge ourselves by our own standard, we cannot tell if we are off track. However, when we hold our life next to the word of God, it is easy to see what adjustments we need to make.
There is no substitute for being daily in the word. That is how we stay on the straight and narrow path.