in Chapter 5 of "The Interpretation of Dreams," titled "The Material and Sources of Dreams," Sigmund Freud examines the origins of dream content. He identifies three main sources:

Recent Events: Dreams often incorporate elements from recent significant experiences.
Childhood Memories: Long-forgotten childhood experiences frequently resurface in dreams.
Physical Stimuli: Bodily sensations and external factors can influence what we dream about.

In this video I explained about the Recent and Significant Experiences. Freud argues that dreams often draw from recent, impactful events in the dreamer's life. These experiences, whether trivial or significant, leave impressions that the unconscious mind weaves into dreams.