What does it mean to submit?
In our struggle to be free and independent we often think that we want to be totally free, to call our own shots, to live our lives without anyone or anything else having any control over us. In reality, we will always be subject to rules and regulations. For example, we might say that we have to submit to the law of gravity. In reality we are subject to the law of gravity whether we willingly submit or if we (think that we) won't submit. For example, we can't walk of the edge of a cliff and expect to just keep walking.
In many ways, submission is much more refined and simpler. For example, I don't do anything major unless my wife is in agreement. If she says no, I can either (over a period of time) take more time to more clearly and truthfully (with no manipulation) explain what I wanted. However, if after all my explanations she still doesn't agree, then I'll just put it aside.