You consist of 2 parts:

A) Your consciousness = Your awareness = What observes
and
B) What is observed = Activities of your 4 lower centers, and your biology through which you perceive 3D world.

Your awareness (A) is constantly observing (B).

This 3D world exists because you are observing it, because your awareness is constantly observing what arises in your body – thoughts, emotions, and perceptions through physical senses, etc. This creates a sense of 3D world.
If there is no awareness (‘what observes’ – which is You), you will not exist. Because you have awareness, 1) you have a sense of ‘I exist’ and 2) the world – what you perceive – exists.

In ‘normal’ people, there is no separation between the awareness (‘what observes’) and what the awareness is observing. Your awareness is completely bound to what is observed. Your awareness’ attention is going 100% to what is observed. This creates an illusion that what you perceive internally (thoughts, emotions etc.) and your body are yourself. Your awareness and what is observed are one.

The Fourth Way Work is to:

1) Loosen this strong tie (identification) between your awareness (A) and what awareness is observing (B), and create a separation between them (through self-observation, non-expression of negative emotions, non-identification with thoughts etc.), and

2) At the same time practice directly to be aware of ‘what observe’ part – placing your attention on your awareness itself. Practice to be aware of your awareness. This is called self-remembering.

We tend to seek ‘enlightenment’ or ‘truth’ in the world of ‘what is observed’ – externally in sacred texts, spiritual teachings etc. and internally though meditations, psychological practices etc.
But at the end you will find all true teachings and teachers continuously point out that what you are seeking for is ‘what is seeking’ – your awareness, your consciousness itself, and help you to realize experientially that your awareness is You, through various methods.
This state of ‘I exist’ is You.

You might have thought that your consciousness is something you own, in the same way as you own your physical body. But in truth, you are your consciousness itself. You are your soul itself.
Your awareness, your consciousness is an actual ‘being’.  You are a being of consciousness. This actualization – to exist as a ‘being of consciousness’ is called enlightenment or self-realization. Consciousness is not a property of your body. It is an actual ‘being’, actual existence, and that is who you really are.

It is in a way a bit comical situation – Let’s say a person, a seeker, Tom is looking for himself…. He is going around the town and asking people “Have you seen Tom?”, “I am looking for Tom”, “Do you know where he is?”… and he travels all over the world looking for that lost Tom… Until one day he realizes “Oh, the one I was searching for…is me…I am Tom…I am Tom myself….How strange I did not realize until now this simple fact…” and then he starts to live his life as Tom himself.