seven types of worlds (representing seven types of entities; four types of achĕthana (matter)- vyaktha (manifested), avyaktha (unmanifested), kāla (time) and ṣudhdha sathva (divine matter) and three types of chĕthana (soul)- badhdha (bound souls in material realm), muktha (liberated souls in spiritual realm) and nithya (ever-free souls in spiritual realm)) —