Most of us know who Bruce Lee is/was, so I wanted to share some of his philosophical beliefs that I share as well.
In our everyday life, we wake up in the morning (most of us anyway) and do stuff that we want (school, work, fun, etc...). We always bend and twist, generate any grand movement from our center, the abdomen.
Now Bruce has always been obsessed with training that midsection and perfecting his strength and flexibility, cause that is where the real power came from in hitting, avoiding, and overall strength to make any movement necessary with ease. If anyone remembers how he would grab a bolted down bench and would do leg raises from his shoulder blades, that is how committed he was to his training of that specific area. He saw and applied the knowledge of how truly important this vital area is, so he continuously trained to always have a strong center of support for all his movements.
On to the analogy: In our real life, we can correlate that type of training with our own weak centers. Where is that center you ask? Well, we all have our own special place for that; thus, I can't just tell you where it is. I believe the general area lies somewhere under the character; in other words, in our persona without the public's opinion.
Just like Lee trained on his center, I think that people need to train on their centers as well. The physical and metaphysical center is important in every day life, nor is it easy to train either area without genuine want either.
Recently, I have been observing my thoughts, where they go and how my mind interprets messages. I did not like where my hard wiring sent everything, it needs reprogramming. When we get tired, our feelings take over and everything is processed on that basis. If we can develop our cores, make the centers stronger everyday, then I believe we will all start to realize how weak our centers truly were. As for me, I increase my workout every week by adding an extra rep toward defining my center physically... now I am beginning to see the importance of the other kind of center training more clearly as well.
Just like training of the physical, it takes time to develop and see results.
If anyone would like to add to this, please do so... for my time is out for now