Patience, Amanaki, we're getting there. The OP, and this thread, is about "Truth" not being constant. As you yourself said, in the OP, "Truth change according to what level of wisdom a person has achieved."
Now, included in that definition of "truth" are two very important concepts which you are merely assuming as given, but have not managed to define. I'm trying to help you get there. Those two concepts are "wisdom" (and its levels), and "person" (including what that person can achieve).
I'll leave you to think about that for one day, and get back to you tomorrow. But of those two concepts, "person" is far and away the more important. Ponder that, and we'll chat tomorrow.
Okay,
@Amanaki , let's continue the dialogue.
Let's first talk about this idea of Wisdom. It seems that you think that wisdom means something like "knowing what THE TRUTH is." But that is not very meaningful, really, is it? I mean, as you yourself have said, there are lots of varieties of truth. It is true that I love my partner. It's also true that he irritates me to death sometimes. But the one thing that you haven't accepted yet is the simplest of all -- that truth is not a thing: truth is a relationship between an idea and its validity. And that is just the start of wisdom.
Let me tell you what I think wisdom is: it is the ability to think and act using knowledge, experience, understanding, common sense and insight. It is associated with attributes such as unbiased judgment, compassion, experiential self-knowledge, self-transcendence and non-attachment, and virtues such as ethics and benevolence.
In other words, wisdom is not "knowing some ultimate truth thingy," it's a guide for living well.
Now the other thing that you and I don't seem to agree on is the idea of a person -- and in this case, I mean the person that is you,
@Amanaki . That is why I asked you questions about being under anaesthetic. I could also have asked you what "YOU" were doing 2 years before you were born, or in 1776, or in 4004 BCE. And the answer to those questions is "nothing," because there was no "YOU" at any of those times. You did not yet exist. And the fact that a general anaesthetic can shut down your brain and make "YOU" disappear completely, so as to be totally unaware of the catastrophic things that are being done to your body should tell you something really important -- that when your brain dies, there will be, once again, sadly, no more "YOU."
The person you imagine yourself to be is a tiny bit of all that you are. You mentioned subconscious, and that is very real -- the subconscious isn't some other entity, it's just the bits of the organism that you are that play a role in the continuation of your existence, but of which you are not consciously aware. Like the growing of your toenails -- can you feel that happening? Do you know about your liver producing bile and emptying into your gall bladder? No -- none of that is the "YOU" you perceive. You are the entity that Descartes was talking about when he wrote "Je pense, donc je suis," (or "I think, therefore I am"). Descartes never went far enough in his thinking, because he never dealt with what it would mean -- TO HIM -- to have died, and to therefore no longer be able to think.
But if it were possible to formulate it, it would have to be something like "I'm not thinking, therefore, I am not." "Je ne pense pas, donc je ne suis pas."