Krishna prepares Arjuna for the detailed technical breakdown that will follow in the subsequent verses. He says: Now, please listen to Me (me śṛṇu) as I explain to you in summary and brief detail (tat samāsena) exactly what that field of activity actually is (tat kṣetraṃ yac ca), what its precise nature and constitution is (yādṛk ca), how it transforms and what its changes are (yad-vikāri), and from what sources it is produced and generated (yataś ca yat). Furthermore, hear about who that Knower of the field actually is (sa ca yo) and what his specific powers and influences are (yat-prabhāvaś ca).