Bhagavad Gita : Chapter 15

They talk about the undecaying banyan tree, with its roots at top, and branches down, and its branches are the scriptures.

He, who understands this, understands the Vedas indeed.

Upwards and downwards in the mortal world, spread its branches,nourished by natural properties, sprouting objects of enjoyment; its action-inciting roots also grow upwards and downwards.

Its form, beginning or end, its base are not known. Cutting down this deep-rooted tree by means of detachment, should that path be searched, once in which there is no return.

That primordial Person,from whom start all actions from of old, is to be approached for guidance.

Only they, who have no ego-delusions, have overcome the weakness of attachments, have no passionate longings, and are free from the binding pairs of pain and pleasure, attain, without losing their way,that imperishable state.

And that state is such that no sun or moon illuminate it. There is no return, once that high state of MINE is reached!

It is only a part of ME, that in the mortal world takes the form of the soul, and it carries with it the natural powers of the six sense organs including the mind.

Whichever body this divine soul enters or leaves, it takes these along, just as the air takes the scents from inside of things.

It experiences the objects, through ear,eye, touch, tongue,nose and the mind. Deluded people do not perceive this soul with its qualities,as it enters, experiences and leaves; only those whose eyes are opened by knowledge perceive it.

The yogis who practise continuously see the soul inside themselves; the senseless people with no self-control never can do it, however much they try.

The energy in the sun that brightens up the whole world, that in the moon and in the fire, is all My energy.

I enter the world and support all beings. I become the Soma in the form of sap and nourish all plants.

I enter the world and, by my strength, support all beings. I become the fire in the bodies of living beings, and, with the help of life-forces, digest the four different types of food.

I am present in the hearts of all; from Me come memory and learning, as well as their loss; it is I alone who is the subject of all scriptures; I initiated the vedanthic philosophy and I alone understand the Vedas.

Thus I have told you the most secret of sciences. Anybody who understands this will be truly wise and will achieve his life-aim.