vṛttyā lakṣaṇa-rūpayā

manah-the mind; buddhih-intelligence; ahaṅkarah-ego; cittam-consciousness; iti-thus; antaratmakam-the internal, subtle senses; catuh-dha-having four aspects; laksyate-is observed; bhedah-the distinction; vrttya-by their functions; laksana-rupaya-representing different characteristics.