We human beings take some of the biggest gifts for granted.
For example a child when learning to walk, the most important development in mastering the skill of walking happens when she learns to lift up her head defying gravity for first ever time. Now, the child does not know that she needs to walk, for which there are sequence of capabilities that needs to be developed. The Mirror Neurons do this work. They are constantly active and replicate what an adult is doing.
The are more than one million calculations and more than ten thousand muscles that need to synchronize for you to even stand. Just stand.