What is a preconceived dream

What is a preconceived dream? You can dream at night when you see something you like during the day. This is the first dream. The more common first-seen dreams: during the day, you see mountains and rivers, people see things, cows and sheep, at night you dream of mountains and water, people and things, and cows and sheep.

For another example, if you watch a certain TV series or movie before going to bed, you seem to be in the TV series or movie in your dream, and you repeat the plot you have watched. This is also a first-sighted dream.