When the object of thinking is something that can be perceived, this kind of thing is called reality.
There is actually no time in human reality, just like people cannot feel the mass contained in matter. We can only feel gravity.
When some people are allowed to land in a field that does not belong to them accidentally or through subjective efforts, even if it is just for a short moment, they are exposed to 'knowledge'. Knowledge refers to those things that are hidden behind the experience and cannot be perceived by the person.
Time is knowledge only at the level that can be accurately studied, such as calendars, celestial bodies, etc. This knowledge comes from the people who discovered it in ancient times and is not the exclusive preserve of ordinary people. The so-called concept of time is definitely an illusion for ordinary people. Without the help of external instruments, a person can only feel the rotation of day and night, and then cannot tell how many days have passed. . When a person is impatiently waiting for the bus, just 10 minutes can feel like an hour.
Imagination is to speculate on the parts that cannot be directly perceived, including talking about things that he cannot perceive at all. When there are various shadows of passed down knowledge in his mind, he thinks that he owns these things. In fact, The basis of his talk is still those things that he can perceive. Such as desires, emotions, names and colors, stocks and comics. For example, if you talk about "memory" with a memory master and a brain doctor respectively, you will both use some nouns, such as brain, thinking, technology, etc., but the meaning behind the language cannot be understood by each other. Everyone believes in something, but if what he believes is not based on actual perceived objectivity, it is bound to cause controversy among the crowd. For the master of memory, memory is the passion of his life, the center of an exciting life surrounded by vivid images. For brain doctors, memory is just a cold criterion in postoperative recovery. These all affect how people organize a series of nouns.
For you, discussing things like the brain, mind, and time can be as passionate as discussing a woman's butt, a delicious sandwich, or the hidden plot of a science fiction movie. . Passion is the middle quantity for your conversion. If you really want to acquire this knowledge, you can only do so if you use objectivity as your yardstick.