Beloved Osho,
Watching the energy changes that are constantly happening in me, suddenly the question arises: what is that which is watching and in what sense is it different from the observed energy?

Kosha, this is a beautiful space to enter into, when the question arises for the first time: What is the observed and who is the observer? This is a beautiful space to enter into - when the question becomes relevant.
Now, on each step, you will start losing the duality of the observer and the observed. The observer and the observed, in the ultimate sense, in reality, are one. They are two only because we have not yet been capable of seeing the One.

Remember THE SECRET OF THE GOLDEN FLOWER. It says: Tao is one; then it divides itself into two, yin and yang, darkness and light, life and death. But the reality is One. It looks like two; it looks like two because we see it through the prism of the mind. The twoness of it is a creation of our minds, it is not there.
It is just like when on a full moon night you look at the moon and then press your eyelid - and suddenly you see two moons. And you know the moon is one. But go on pressing the eye - and you know perfectly well the moon is one - and now you can see two moons.

That's exactly what is happening. Mind is creating duality, because mind cannot conceive the One. There is an intrinsic impossibility for the mind to conceive the One. Try to understand why the mind cannot conceive the One.

Mind needs distinctions; the One is distinctionless. The whole purpose of the mind is to demark things. The whole purpose of the mind is to particularize things - this is a woman and that is a man, this is a friend and that is an enemy, this is food and this is just stone, this is a chair and that is a table, this is the door and this is the wall. This is the function of the mind: the whole purpose of the mind is to make distinctions. It is very utilitarian; it has to be used.

But in the ultimate sense, it becomes the barrier. That which is a help on the circumference becomes a hindrance at the center.

Mind has no truth, but only utility; just as a child is born: no child brings a label with himself, a nameplate or anything. He simply comes. You don't ask him, "Who are you, and what is your name, and from where are you coming?" The child will simply look at you and will think you are stupid: "What nonsense you are talking!" You start giving him a name, an identity. And you know that name is false, although useful, but false; untrue, but utilitarian. He will need that name.

There are millions of people. If he falls in love with a woman and she wants to write a letter to him, how is she supposed to write a letter to a man who has no name? How can the letter be delivered to him?
It has utility in the world. We give him a name and slowly, slowly we completely forget that the name is just a utilitarian device, it has no truth about it. You can change the name. You can go to the court, declare that you drop your old name and you will be a new name. You can change as many times as you want.

Exactly like that, mind is a device, a natural device to help you function in the world, to find you things. If you drop the mind, all is blurred into one reality. Then it will not be possible to make any distinction between what is a marshmallow and what is a pillow. You may start sleeping with the marshmallow underneath your head and you may start eating the pillow.

So I am not saying mind is not useful. Mind is useful, but its very usefulness is based on creating distinctions.
But when you start moving in meditation, you are moving beyond mind. You are moving beyond utility into truth. Then you are trying to see that which is, not that which is useful. Then slowly, slowly the duality will disappear.

...

We are all part of one reality. I am in my right hand, I am in my left hand. I am in my body, but my body is joined with the earth and the sun and the moon. We are all joined together, interlinked. Nobody is independent, we are all interdependent.

When slowly, slowly the mind takes a leap from you - you say goodbye to the mind and the no-mind opens its infinity - then you are the bamboo, then you are in the bamboo, as the bamboo. The observer has become the observed. And the tremendous benediction of it! And the great transformation that comes through it!

And this will be happening, Kosha, more and more. You have earned it. Don't be afraid! It will appear like insanity and the mind will condemn it like insanity.
This is the point when you have to listen to the Master, not to the mind. I say to you: go ahead. You have risked a lot; now risk a little more. Let this distinction also disappear, and with its disappearance, the satori.

Why is love so essential for spiritual growth?

Love and awareness is the highest form of polarity - just like man/woman, life/death, darkness/light, summer/winter, outer/ inner, yin/yang, the body and the soul, the creation and the creator. Love and awareness is the highest form of polarity, the last polarity, at which transcendence happens.

Love needs two. It is a relationship, it is outgoing, it is energy moving outwards. There is an object: the beloved. The object becomes more important than yourself. Your joy is in the object. If your beloved is happy, you are happy; you become part of the object. There is a kind of dependence, and the other is needed. Without the other you will feel lonely.

Awareness is just being with yourself in utter aloneness, just being alert. It is not a relationship, the other is not needed at all. It is not outgoing, it is ingoing.

Love is the movement of the light out of your being. Awareness is the reverse movement, the backward movement of the light to the source again, returning to the source.

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Love is very essential. You have to lose yourself to gain yourself. Love is the only possibility of losing yourself totally. When you are lost totally, then you will be able to remember what you have done.

It is like a fish which has always lived in the ocean. It will never become aware of the ocean and the benediction of it. It has to be caught in a net, a fisherman has to come to take it out, throw it on the shore. Only on the shore, in the hot sun, will it remember for the first time. Although it lived for years in the ocean, it was oblivious, completely oblivious, of the ocean. Now the thirst, the heat, makes it mindful of the ocean. A great longing arises to go back to the ocean. It makes every effort to jump back into the ocean.

That is the state of a seeker: thirsty to be back at the original source. And if this fish can enter the ocean again... can't you imagine the celebration! And the fish has lived in the ocean forever but there was no celebration. Now there is the possibility of celebration. Now it will feel so delighted, so blessed.
Love is a must for spiritual growth. And, moreover, love functions as a mirror.

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In moments of deep love there are glimpses of the original face, although those glimpses are coming as reflections. Just as on a full moon night you see the moon reflected in the lake, in the silent lake, so love functions as a lake. The moon reflected in the lake is the beginning of the search for the real moon.

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Love on the one hand will give you great joy and on the other hand will give you a thirst for eternal joy.

From Osho, The Secrets of Secrets