The Bhagavad Gita...

Arjuna said,
'Nature and Spirit, the field and the knower of the field,
this I wish to know: knowledge and what is known, Keshava.'

"The blessed Lord said,
'This body, Kaunteya, is called the field;
this one who knows it,
the knowers of that declare the knower of the field.
And also know me as the field knower in all fields, Bharata,
knowledge of the field and the field knower,
which is thought by me to be true knowledge.

"'What that field is and of what kind
and of what modifications and from where
and who this one is and what its power is,
hear that briefly from me.
Chanted many times by the seers in various sacred hymns
and distinctly in God's scriptures,
with undeniable reasons,
the great elements, ego, intuition, and the unmanifest,
the senses ten and one, and the five objects of the senses,
desire, aversion, pleasure, pain,
combination, consciousness, firmness,
this in brief is the field described with modifications.

"'Non-pride, non-deceit, nonviolence, patience, honesty,
service of the teacher, integrity, stability, self-control,
in the objects of sense detached, and non-ego;
insight into the pain and evil
of birth, death, old age, disease;
non-attachment, non-clinging to son, wife, home, et cetera,
and constant equanimity in wanted and unwanted events;
and unswerving love to me by exclusive union,
resorting to a secluded place, dissatisfied in a crowd,
constant oversoul knowledge,
observing the purpose of true knowledge:
this knowledge is explained thus;
ignorance is what is contrary to this.

"'What is to be known that I shall explain,
knowing which, one attains immortality;
this beginningless supreme God
is said to be neither being nor non-being.
Everywhere having hands and feet,
everywhere eyes, heads, faces,
everywhere in the world ears,
this stands all pervading,
the appearance of all sense qualities, freed from all senses,
unattached and yet all supporting,
free of the qualities and enjoyer of the qualities.

"'Outside and inside of beings inanimate and animate,
because of its subtlety this is unknown;
also far away and nearby is this.
Also undivided and as if staying divided in beings,
also supporting beings this is to be known,
the devourer and the creator.
This is even the light of lights,
said to be beyond darkness---
the knowledge to be known, the goal of knowledge
situated in the heart of all.
Thus the field and the knowledge to be known are described.

"'My devotee, understanding this, approaches my essence.
Know nature and Spirit, both also beginningless,
and know the modifications and qualities coming from nature.
Concerning the doer, the doing, and the instrument,
nature is said to be the cause.
Spirit is said to be the cause
in the experiencing of pleasure and pain,
for Spirit situated in nature
experiences the qualities born of nature.
Attachment to the qualities is the instrument
of its birth in good and evil wombs.

"'The supreme Spirit in this body is also said to be
the observer, allower, supporter, experiencer,
the great Lord and the supreme soul.
Whoever thus knows Spirit and nature
together with the qualities,
even in any stage of existence,
this one is not born again.

"'Some perceive the soul through meditation
by the soul in the soul,
others by Sankhya yoga, and others by action yoga;
yet others, not knowing this, worship hearing it from others,
and they also transcend death following the scripture.
Since any being, stable or moving,
is born from the union of the field and the field knower,
know that, Bharata bull.

"'Whoever perceives the same supreme Lord
situated in all beings, not perishing in their perishings,
this one perceives;
for perceiving the same Lord established everywhere,
one does not hurt the soul with the soul.
Then one goes to the supreme goal.

"'And whoever perceives actions
completely performed by nature,
the soul thus the non-doer, this one perceives.
When one discerns various states of being situated in one
and spreading out from that, then one attains God.

"'Because this imperishable supreme soul
dwelling in the body
is beginningless and free of qualities also, Kaunteya,
it does not act nor is it stained.
As omnipresent space from its subtlety is not stained,
so the soul situated in the body is not ever stained.

"'As the one sun illumines this entire world,
so the Lord of the field illumines the entire field, Bharata.
Those who know by the eye of knowledge
this distinction between the field and the field knower
and the liberation of being from nature
go to the supreme.'