BṚHADĀRAṆYAKA UPANISHAD · 1.4.16

अथो अयं वा आत्मा सर्वेषां भूतानां लोकः ।
स यज् जुहोति यद् यजते तेन देवानां लोकः ।
अथ यद् अनुब्रूते तेन ऋषीणाम् ।
अथ यत् पितृभ्यो निपृणाति यत् प्रजाम् इच्छते तेन पितॄणाम् ।
अथ यन् मनुष्यान् वासयते यद् एभ्यो ऽशनं ददाति तेन मनुष्याणाम् ।
अथ यत् पशुभ्यस् तृणोदकं विन्दति तेन पशूनाम् ।
यद् अस्य गृहेषु श्वापदा वयांस्य् आ पिपीलिकाभ्य उपजीवन्ति तेन तेषां लोकः ।
यथा ह वै स्वाय लोकायारिष्टिम् इच्छेत् ।
एवं हैवंविदे सर्वदा सर्वाणि भूतान्य् अरिष्टिम् इच्छन्ति ।
तद् वा एतद् विदितं मीमांसितम् ॥

atho ayaṃ vā ātmā sarveṣāṃ bhūtānāṃ lokaḥ ।
sa yaj juhoti yad yajate tena devānāṃ lokaḥ ।
atha yad anubrūte tena ṛṣīṇām ।
atha yat pitṛbhyo nipṛṇāti yat prajām icchate tena pitṝṇām ।
atha yan manuṣyān vāsayate yad ebhyo ’śanaṃ dadāti tena manuṣyāṇām ।
atha yat paśubhyas tṛṇodakaṃ vindati tena paśūnām ।
yad asya gṛheṣu śvāpadā vayāṃsy ā pipīlikābhya upajīvanti tena teṣāṃ lokaḥ ।
yathā ha vai svāya lokāyāriṣṭim icchet ।
evaṃ haivaṃvide sarvadā sarvāṇi bhūtāny ariṣṭim icchanti ।
tad vā etad viditaṃ mīmāṃsitam ॥

Now verily this Self (of the ignorant man) is the world of all creatures. In so far as man sacrifices and pours out libations, he is the world of the Devas; in so far as he repeats the hymns, &c., he is the world of the Rishis; in so far as he offers cakes to the Fathers and tries to obtain offspring, he is the world of the Fathers; in so far as he gives shelter and food to men, he is the world of men; in so far as he finds fodder and water for the animals, he is the world of the animals; in so far as quadrupeds, birds, and even ants live in his houses, he is their world. And as every one wishes his own world not to be injured, thus all beings wish that he who knows this should not be injured. Verily this is known and has been well reasoned.

F. Max Müller · The Upanishads, Sacred Books of the East 15 (1884)