These symbols interact with each other in ways that make meanings based on juxtapositions and interactions as well as your own response to each of the individual symbols.
You can see how one symbol modifying another creates a wealth of new suggestions.
In the time before screens there was a little device called a kaleidoscope made of a tube with small colorful glass fragments and a mirror. The angled mirror transformed the glass fragments into a multi-sided pattern like a snowflake, which changed as the tube was rotated, and the pieces of colored glass fell into new arrangements. This was about as psychedelic as kids got many decades ago. The kaleidoscope is a sort of moving mandala.
The relations between different symbols tumble the way these bits of colored glass tumbled forming patterns from their reflections off of one another.
Turning over a new card is like turning the kaleidoscope; it creates a new set of reflections among the images and changes their meaning as they relate to each other.