The process of sanctification can be compared to an iceberg, which is almost 90% under water. As the sun shines on the iceberg, the exposed part melts, moving the lower part upward.
In the same way, we are usually aware of only a small part of our sinfulness and need, which is all we can deal with at any one time. However, as the light of God’s work in our lives changes us in the areas we know about, we become aware of new areas needing the work of God.