It is important to be "on the same wavelength and in phase." This is not limited to things between a man and a woman.
We may exchange information with a particular part of a material or a specific party by phase adjustment
Some plants grow faster listening to Morzart, but run dry listening to rock music. I want to do the same thing scientifically by handling materials with ultra-fast light pulse coherently. For example, there are two reaction channels to produce A + BC and AB + C from ABC. Time scale of atomic nucleus is as short as 10|11 to 10|14 sec. When light at about the same pulse width is irradiated at a good timing, however, we may control the reaction channel to obtain one kind of product alone. Or if you radiate short-pulse light to lattice vibration of crystal, as you push a swing, you may wiggle a particular lattice alone at high vibration amplitude by resonance. In this way, a new solid state may be realized, and high functionality may be achieved. We may expect such impact in the field of application of ultra-fast light electronics. Coherent control of items in the 10|15 sec. range cannot be done by genuine electronics, but can be done by light. Using light allows human being to use a fine adjustment control which was not so far available. As in science fiction, the content written in this page might be transferred, without using letters, to you by irradiating music composed by a light synthesizer, or pulse train of light beam, to your brain in the future.