Bhagavad Gita 13.26
यावत्सञ्जायते किञ्चित्सत्त्वं स्थावरजङ्गमम्। क्षेत्रक्षेत्रज्ञसंयोगात्तद्विद्धि भरतर्षभ॥
yāvat sañjāyate kiñcit sattvaṁ sthāvara-jaṅgamam kṣetra-kṣetrajña-saṁyogāt tad viddhi bharatarṣabha
Translation
Whatever being is born, moving or unmoving, know that to be from the union of field and knower of the field, Bharata-rishabha.
Reflection
Look at any living thing and notice: field, knower, joined right there.
Read this verse in its chapter: Chapter Thirteen
A cosmological note. Every birth, of every kind, springs from the joining of kshetra and kshetrajna. Stones do not have inner observers, plants do, animals do, humans do, but every gradation of being still requires this pair. Without prakriti there is no manifestation. Without purusha there is no awareness in the manifestation. Sthavara-jangama, the unmoving and the moving, covers everything that has come into being. The verse universalizes the chapter's central distinction. It is not only a tool for human introspection. It is the structure of the world. Today, look at any living thing and notice: field, knower, joined. The grasshopper. The neighbor. The tree at the window.