The principle of specificity

The Principle of Specificity, as it relates to sports and fitness, states that training must be relevant to the specific sport the individual is training for to produce an effect in that sport. Your training must also be specific to your individual abilities, current fitness levels and training objectives. The plan you put in place to reach your fitness goals will be specifically designed to your body's weaknesses, strengths and capabilities.
In short, your training will be unique and special to you because you are unique and different from every other fitness trainee. Your body is different, your background is different and your goals are different. Not every person lifting weights in the gym is training for a body building competition. Some are just trying to rebuild strength to protect their bones from looming osteoporosis. Others are trying to increase their speed for their next half-marathon. And some just want flat abs for bikini season. Look at this as a school lunch table. Some people packed a turkey sandwich, others are sticking with peanut butter and jelly and still others decide to buy the cafeteria grub. They all end up at the same table but their trays all look very different from one another.
When training our bodies we do so with our own personal objectives. What we are trying to achieve is at the very foundation of how we will train. If we are looking to simply become healthier we won't be spending all our time on the ab machine. Training for overall health will require a more balanced approach that includes working all of our muscles plus aerobic cardiovascular exercise. The results you seek will guide the exercises you choose. They will be specifically targeted to the areas in which you seek progress and adaptation.

This principle isn't unique to just sports training. Our specificity doesn't end in the gym. Specificity is key to who we are as children of God. We have been masterfully created, each of us uniquely designed and unlike any other.  Psalm 139:13-14 says, "For you created my inmost being; you knit me together in my mother's womb. I praise you because I am fearfully and wonderfully made; your works are wonderful, I know that full well."
We are unique, special creations of the Master Creator, God on High. He hasn't made us like any other person. He has such a vivid and limitless imagination that He has created each and every one of us to be distinct and set apart from one another. He has put into practice the principle of specificity. Your life, looks, purpose and journey is unlike any other. The road map that God has plotted out for you is yours alone. You have the exclusive VIP inside pass to your life. There has only been one created. And it has your name on it.
Isn't that thrilling and exciting? Isn't it overwhelming to consider that the God who put the stars in the sky, created the vast array of animals and makes the seasons change has also created you with that same delicate hand? It is miraculous and awe inspiring. Yet, it can also be intimidating. If this life is unique to you and you alone that means no one else will be walking it right along side you, every step of the way. In other words, this journey could become lonely at times.
While you walk along your specific path you may find that no one else seems to be around you. Their paths have diverged from yours, taking them in their own unique direction. Maybe they have run into company for a time along their path while you find yourself completely deserted. At other times along the path you may find that you run into someone who is traveling in the same direction, at least for a time, and you join to continue on for as long as God allows. There is no telling just when God's will for you will take you off on your own or when it will come along side another one of His children. The journey we are on is specific to us and the precise steps it will take are known only to God. You are following and walking with Him, even if that means you don't see another human soul for miles and miles. This principle of specificity in faith means that our walk in life won't take the exact twists and turns as the next person.
On our walk we must trust God with our future, knowing that He has our best interest at heart and the best way to reach the great destinations He has in store for us. Ephesians 2:10 says, "For we are God's workmanship, created in Christ Jesus to do good works, which God prepared in advance for us to do." Our path has been plotted out ahead of time especially for us. The special creation that God formed in the womb doesn't end with birth. The journey He has ahead is just as special. 
You may find yourself alone today on your own unique journey. You may be in the gym doing an entirely different exercise than everyone else around you. But take heart, you are being trained for your specific purpose. God's intentions for you are unlike those of the people that surround you, so He can't train you up like He trains them. The exercises you will perform won't be the exercises they perform. In the end, the training you will undergo will get you to the unique and marvelous destination God has waiting up ahead especially for you. He is preparing a wonderful place and it has your name on it. In the meantime, He is preparing you for entering that place. When you get there the journey, the exercises, the sets and repetitions will all make sense. You will finally see why you had to do all the crazy moves and turns that seemed so strange to you at the time. All the days of walks alone with your Savior, the periods of isolation - you will see that they were all part of the plan. Your plan: beautiful, unique and marvelous. A plan specifically designed by your Creator for you.