तत्क्षेत्रं यच्च यादृक्च यद्विकारि यतश्च यत् |
स च यो यत्प्रभावश्च तत्समासेन मे शृणु || 4||
tat kṣhetraṁ yach cha yādṛik cha yad-vikāri yataśh cha yat
sa cha yo yat-prabhāvaśh cha tat samāsena me śhṛiṇu
tat—that; kṣhetram—field of activities; yat—what; cha—and; yādṛik—its nature; cha—and; yat-vikāri—how change takes place in it; yataḥ—from what; cha—also; yat—what; saḥ—he; cha—also; yaḥ—who; yat-prabhāvaḥ—what his powers are; cha—and; tat—that; samāsena—in summary; me—from me; śhṛiṇu—listen
BG 13.4: Listen and I will explain to you what that field is and what its nature is. I will also explain how change takes place within it, from what it was created, who the knower of the field of activities is, and what his powers are.