Different degrees of adaptation to the development and changes of the times. Letters are tools for people who are far apart and can't meet for the time being to exchange feelings and thoughts with each other. Letters play an important role in the history of human communication. E-mail refers to the communication mode of transmitting information by electronic means. Users can contact network users in any corner of the world at a very low price and in a very fast way. These emails can be written, images, sounds and other ways.
People can let us see their thinking activities when writing. Why? Because when you pick up a pen to write, the rhythm of your current thoughts will be engraved on this paper, which becomes handwriting. Every sentence, between the lines, reveals our mental journey. Therefore, the ancients said that words are like people, that is to say, words directly reflect the projection of the soul, and when writing, they are real and comprehensive projections, showing all the inner consciousness.