This is the first complete analysys of Aikido with the aid of Physics. Giving all the tools needed to follow in the journey, it shows the coherence between the principles of Aikido and its moves. It contains a complete demonstration of the NoForce principle in all Aikido moves and the lack of Energy waste. Given that it’s the only martial art where’s there are no two fighters but just one, the attacker, we can make away with all biomechanics complications and have a complete formal representation in Physical terms. It’s also a journey in modern Physics, since, given that no simple mechanics like levers or similar are involved, and given the special role of Tori, it reveals an intrinsic unit with both Relativity and Quantum Mechanics. In the second part, starting from the recent discovery that some martial arts aid the regrowth of neurons, it delves into the relationship body-mind, showing what all the modern researches on brain, consciousness and healing have discovered or rediscovered .