Here's the important part: every reaction increases the entropy of the universe.
There's a tradeoff in every reaction necessary to accomplish work. We like the fridge to be cold, but we can't except it to get that way on it's own. Why? Because systems seek to maximize entropy. In this case, the maximum entropy level of the fridge and the surroundings exist when the fridge is the same temperature as the surroundings and thus all particles are as disorganized as they can be. If we want to cool the fridge down, we have to put work/energy into it using the compressor and the chemical properties of the Freon-like material. By putting work in, we can cause the entropy level of the fridge to decrease and, therefore, it can sustain a colder temperature than the surroundings.
Take note of the important fact that even in this process, the entropy of the universe is still increasing. The fridge decreased, but where did the energy come from to do it? The power company, which produces energy by one of several means. Each way will increase entropy in the universe more than the fridge will decrease it. The overall S of the universe will increase.
Life is not spontaneous. Life works against entropy. Our bodies are builders, not "sparsifiers." Thus life has a problem. If everything has to increase the universe's entropy, what do we do? The truth is, we work the same way as the fridge. We offload our entropy problem. It's like an entropy chain. We use the energy from the food we eat to build proteins and to do work. That food is built from plants, which take a ton of energy from the sun to build sugars. If we follow the chain back, we realize that we can only survive if the sun increases in entropy more than we decrease in entropy. Essentially, we offload our entropy problem to the sun. The only way life can exist on earth is if we take our problems and let something else deal with all of them. Of course, we do deal with some of it; we will die eventually and our particles will be dispersed. We are all subject to the 2nd Law of Thermodynamics, but at the same time, we can use another Law (a less defined law) and transfer our problem to the sun. It's a law because it works, and it always works. It's what allows us to live. Yet the first law, the law defining entropy, is not violated. In fact, if we define life in terms of a system that auto-perpetuates a lower entropy state even with complete material turnover, the sun becomes the enabler of that. The sun becomes not only the light, but the life of the world.
Now, as I'm sure you predicted, comes the ol' vowel switcheroo. 'u' becomes 'o' in the sun. The only enabler of life on this planet is the Son. The only way we can survive is if we offload our problems to Him. Sometimes it goes through the chain - hometeachers, the bishop, etc - until it finally reaches Him, but it will eventually. Through the Son the Law of Justice can still be fulfilled while letting us use the Law of Mercy (less defined - more abstract) to transfer the full effect of the Law of Justice to Him. As our bodies have to do work to let the entropy changes slow and transfer the change away, so do our spirits have to do work to let our problems transfer to Christ. It's called repentance, prayer, fasting, commandment-keeping, etc.
Now, scientifically, the sun of this world will ultimately fail. Entropy will wear it down until it stops giving off the light and the energy the world needs. That is where the comparison stops. Unlike this temporal sun, the Son of Man (exalted Man) will not fail. He has already completed the mission that allows us to apply the Law of Mercy. It is an infinite and eternal sacrifice. Jesus Christ, the true Son, will never wear down and we can partake of his infinite light, power, and goodness forever. Life is not spontaneous. We were created by God through his Son, Jesus Christ, and by Him and through Him we live. He is the ultimate light and life of the world.
