Is Chögyal Namkhai Norbu correct when he says our life is unreal and that Buddha taught that life is just like a dream? In this video clip you can see renowned Tibetan master Chögyal Namkhai Norbu saying that life is unreal and that the Buddha taught it is just like a dream. Is he correct? I've transcribed below:

Sometimes we have very nice dream. Fantastic dream... And we enjoy. We
are very happy. We are dreaming, for example... ...I'm looking and
someone is selling... lottery ticket. Very, very big lottery. I am
taking and buying from someone and I am returning home. And I am
seeing the television. And when I am looking at my number... The
television is saying that number! Then I feel very happy. &quot;Oh, what do
I do now?&quot; All this money. I am really happy and then I wake up. When
I wake up, I discovered that is a dream, unfortunately. I am not
happy. Or sometimes... very, very bad dream. There are many people
that want to kill me. They are arriving in my house. Then they are
starting to kill me. I feel very afraid. That moment I wake up. And I
discover, &quot;Oh, that is only a dream!&quot; I am very happy. You see, good
or bad. Even good or bad. A dream is a dream. Unreal. So Buddha is
saying, our life is just like a dream. Big dream. Dream of night is a
very small dream, but... Our life's dream, it has many day and night,
day and night etcetera. When we discover that... Dreams, we discover
when we wake up. But big dreams, we discover... When we are dying and
being in a state of Bardo (transitional state).

Emphasis mine.
A closely related question (with answers) is here.
It might be possible for you to gain the understanding you need from these two powerful excerpts. The first is from the Phena Sutta; the second is from chapter 32 of the Diamond Sutra.

The Phena Sutta
Form is like a glob of foam;
feeling, a bubble;
perception, a mirage;
fabrications, a banana tree;
consciousness, a magic trick —
this has been taught
by the Kinsman of the Sun.
However you observe them,
appropriately examine them,
they're empty, void
to whoever sees them
appropriately.

[ADDITION]
How can the Phena Sutta be describing something that is dream-like? The aggregates give their fascination over to form-based ideas such that they develop an unhealthy reliance on those ideas. This is called clinging. Clinging presents itself in two ways: attraction and aversion. It is not objects that we cling to, but it originates from our interpretation of those objects; the way in which those objects are cognized. Therefore, the clinging is always from that origin: the mind - the neurotic mind clings to the body. It is this motion of aversion and attraction that creates a noisy haze in our consciousness, stimulated by feeling/perception. This is pananca. This haze hinders our view; we don't see clearly. This not seeing clearly is avijja from which suffering arises. The experience of suffering is a method by which the body tries to eject wrong views born from that very ignorance, but we misperceive its function. Suffering then becomes an identity instead of knowledge. This is how the aggregates can present themselves as dream-like. It's just another way to speak about ignorance. It doesn't matter how you word it. If dream is suitable for you, then fine, as long as you understand the mechanisms behind it.


The Diamond Sutra
“Subhuti, how can one explain this Sutra to others without holding in
mind any arbitrary conception of forms or phenomena or spiritual
truths? It can only be done, Subhuti, by keeping the mind in perfect
tranquility and free from any attachment to appearances.”
“So I say to you – This is how to contemplate our conditioned
existence in this fleeting world:”
“Like a tiny drop of dew, or a bubble floating in a stream; Like a
flash of lightning in a summer cloud, Or a flickering lamp, an
illusion, a phantom, or a dream.”
“So is all conditioned existence to be seen.”
Thus spoke Buddha.