Bhagavad Gita...

"Arjuna said,
'What is this God? What is this oversoul?
What is action, best person?
And what is Lord of being declared to be?
What is divine Lord said to be?
How and who is the Lord of sacrifice
here in this body, slayer of Madhu?
And how at the time of death
are you known by the self-controlled?'

"The blessed Lord said,
'Imperishable God is supreme;
the oversoul is said to be its own essence,
which originates the essence of being;
action is known as creative power.
The realm of being is the perishable essence,
and the divine realm is Spirit.
I am Lord of sacrifice here in the body, best embodied one.
And at the last hour whoever dies remembering me,
releasing the body, goes to my essence.
There is no doubt about this.
Moreover whatever essence is remembered at the end
when one abandons the body, one goes to that, Kaunteya,
always becoming that essence.
Therefore at all times remember me and fight.
The intuitive mind fixed on me, you will surely come to me.

"'Practicing yoga by uniting, by consciousness,
by not going toward anything else,
one goes to supreme divine Spirit, Partha, meditating.
Whoever meditates on the ancient poet, the ruler,
smaller than an atom, supporter of all,
unimaginable form, the color of the sun beyond darkness,
at the time of death with unmoving mind,
with devotion and united with the strength of yoga,
causing the breath to enter correctly between the eyebrows,
one approaches this supreme divine Spirit,
which the knowers of the Vedas call imperishable,
which the ascetics free of passion enter,
which wanting they follow the way to chastity;
this path I shall explain to you briefly.

"'Controlling all doors
and shutting up the mind in the heart,
placing in the head the breath of the soul,
established in yoga concentration,
chanting thus AUM, the one syllable, God, remembering me,
whoever dies, abandoning the body, goes to the supreme goal.
Having undivided consciousness perpetually,
whoever remembers me always,
for this one I am easy to reach,
Partha, for the yogi who is always united.
Coming to me, the great souls gone to supreme perfection
do not incur rebirth, the impermanent home of suffering.
Up to the God realm, worlds are successive rebirths, Arjuna;
but approaching me, Kaunteya, rebirth is not found.

"'As extending a thousand ages they know a day of God,
a night ending a thousand ages, those knowing day and night.
From the unmanifest all manifestations originate at daybreak;
at nightfall they are dissolved there
into what is known as unmanifest.
This multitude of beings becoming, existing, is dissolved
at nightfall without will, Partha;
it comes into existence at daybreak.

"'But higher than this unmanifest
is another ancient unmanifest essence
which in the perishing of all beings does not perish.
Thus the eternal unmanifest is called the supreme goal,
which attaining they do not return.
This is my supreme abode.
This supreme Spirit, Partha, is to be attained
by undivided devotion, within which beings exist,
by which all this universe is pervaded.