May I say several words about the realisation of the idea first...
The original factor that pushed me to bring a topic about it years ago, when it was actually my fresh time on the forum, was simply an enthusiasm - initiated by discoveries I was making during my personal experiments. After the time that has passed since then, the whole matter gained a little different direction since it doesn't own the same bright light which made me want to share it. Due to some kind of promise that I made I brought the idea into creation with hope you will find in it at least a bit of the kind of interest I had originally.
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Starting from the end to get to the beginning point.
The opening question concerns an ordinary matter - the meaning of being a person.
None of terms seems to be difficult to define in the world of closed and established possibilities. On this field human kind encloses a variety of individuals with features distinguishing one from another.
A message of our existence is given by actions, thoughts, words, feelings etc.
Common relation between all of us. Particular reactions to them is where an aspect of personality comes in. Everything about it is true.
Everything what's common among people classifies a kind. And all the differences among them still find their category and it goes on. In result a human is found in one box.
With all the others as special as them.
That's about being an individual.

Now from the side of earning for even this small illusive impression of uniqueness.
Life is an inseparable part of human's creation. Relation should be bilateral.

"Life" - as every general concept is made of details which only when looked at separately at each, gives a true image.
A human as a lump of clay under treatment of different mould:
- of emotions
- of feelings
- of moods

Going further, each turns out to be aroused by: surrounding, situations, weather conditions sometimes (moods), the nature of containing both evil and good within.
A human flung about in crazy whirl of their mortal existence.

Control…
While its ersatz are noticeable in our life, what about the absolute control. – Is this real aspect or is it just another wish we like feeding ourselves on…
Wishes, goals, dreams…
The same concerns these possessions. The fact that the path to their fulfillment does not always seem to go according to mind is known, can control apply to their very birth?

Are dreams dependant on us and are we truly the ones that initiate them or do we simply receive ready information and from that moment on we go into realisation of them.
Aren't goals just a result of choice from things offered by life – bound to what we learn about the world.
Thoughts do not stay out of the question, either. Some come to mind out of nowhere and get to our consciousness with no source of birth detected. Other ones are just a response to events experiences in life, next ones just follow and explicit an original thought that popped on our mind. Some last longer, sometimes to a degree which turns it into nagging, longer than we would wish them to exist, yet other ones happen to be elusive and fleeting.

We don't initiate them, we use them when they are already born.

Perhaps will will do? Will as a hand to control them all and then giving us a state we declare the right one, the true one… The very tool used to give both a shape and a meaning for matters we direct it to, as well as a feeling of our existence. Is will the answer…

To ask is - is will invincible – does everything always go according to it, what does it mean when it doesn't… Does a human have anything under control at all? What happens with our true self in the moments when the power of will is unattainable …
Is will the greatest and also the only reliable "friend" a human can count on and thereby having some ground to include will into human's "I" or does it only have a potential of control.
And the life acts as if it wanted to continually testify about the opposite.
Illnesses with one of the most severe on top - a depression which brings psychic down to the possibilities of a limb that it broken.
Another power ruling a human, another factor which deprive human of another chance to define any part that convinces us about owning independent from everything - "self".

I don't put any specific question to insinuate a punchline. The only point is within the whole topic – the matter to question with your own ability to look.