This shows the trails of some globules of colour. Several bodies eject them as they move. Each of these bodies belongs to one of four castes according to the colour of the globules it ejects.
- caste 1 – bodies that eject white globules
- caste 2 – bodies that eject blue globules
- caste 3 – bodies that eject tawny globules
- caste 4 – bodies that ejects greenish globules