CEVAP:

• The Brahmins symbolized the head of an organism. This group was composed of those with knowledge of the sacred texts and who were, therefore, the priests and scholars.
• The second group was the Kshatriya who represented the heart. They symbolized defenders of society and were politicians, soldiers, and administrators. 
• There was not yet a separate Sudra group or peasants, but all were of the Vaisya grouping, occupied with worldly matters. 
• Finally, there were already people -- mostly non-Aryans -- who were excluded from the system. These later became known as members of the Scheduled Castes or Untouchables.