Touch Metaphors, 8 total.
Similarity I: There is no more physical room between two things.
Similarity II: When using, dealing with, or doing some other kinds of physical activities, you have to touch something both physically and in an abstract sense. That is to say, the action of touching is included in such actions as using, and dealing with something.
Similarity III: Something touches an amount if there is no mental space between them.
Similarity IV: You can only be moved when something affects you emotionally and it is just like something has touched you/your heart and you/your heart is moved by something.
Similarity V: A particular way of doing something, or the ability to do something in a particular way may leave an impression on you. It is just like it has touched you (with no room in between), and the particular way or ability becomes a touch.
Similarity VI: There is a connection between the two things that are touching or in touch with each other. In the source model THE SENSE OF TOUCH, these two things are directedly connected, with nothing between them. But in the target model SOCIAL LIFE, they are often connected by something else, which is often information or knowledge.
Similarity VII: To touch is to make another thing get involved. So is talking about or mentioning a particular subject, situation, or problem.
Similarity VIII: A low degree or a small number of something is touch/touching.
“The Touch Metaphors: A cognitive and corpus-based study” Lu Juanhong