Leyla,
So, existence is determined by the perceptions, thoughts and conclusions of others? Interesting.
No. Are you determining existence for and to that dead person? Perceptions and the Nature given capability of logical and deductive reasoning confirm that our experience of existence is not nothing whatsoever; they do not create what is perceived. We could not be the source of what we perceive. Fundamentally speaking, existence could never have been non-existence at any time, since Totality is existence, only that we, subjectively, are capable of logically experiencing and "determining" it for ourselves. It is subjective, personally, and objective collectively.
And another thing, (an after though after finishing the post), if it takes perception to determine existence, then I can logically say, that animals perceive too, although they may not comprehend it logically and define it as existence, but grass does exist for a sheep. Hence, it does not matter if I logically determine or not, existence would need no determination. Existence is far too fundamental even to determine what all is needed to determine it.
That is, this lump of grey matter performing basic functions that keep a body alive is “his� Whose? Who is he?
Sapius, a person we identify as such, the whole bundle put together. Saying "I" or "my" or "his", is only a figure of speech purported by a logical process generated by a brain since it has the capability of defining things, including parts and functions of his (the whole persons) being.
I have to know, Sapius, who are “you†exactly?
I am who I am, who else? I'm surely not you, or a tree, so I must be me. God must have been logical too; it was stupid of Moses to ask.
How do I kill you yet allow your body and brain to exist?
Gulp! Well, I never thought you did go that far, but I guess it’s ok, if it is not that painful a death that is, but make sure you don't pass out, and you shall experience that my (Sapius's) body and brain have managed to exist, at least until they rot away.
How do I kill conscious thought?
Why in the world would you want to do that? Why would you want to deny yourself of this wonderful gift? Any ways, I dunno, you could always try dropping a piano on your head, or a ton of bricks. I'm not quite sure how strong your skull is. hehehe.....
If all things lack inherent existence, what is the relevance of “literal†existence (actuality) to perceived existence (illusion)?
By “literal†existence I mean A=A, things as they are, and perceived existence is that which recognizes that A=A, meaningfully in our case. And did anyone ever tell you that non-inherent existence means no-existence whatsoever? ‘Things do not inherently exist’ simply means that they do not posses any permanency due to their dynamic nature, but since temporary forms do exist, including ourselves, these forms are not simply hot air. How else would we have a continued communication, day after day, if our temporary form could not hold together beyond a certain time period? Same goes for the said "illusions". Things are said to be illusory in the sense that they do not have permanency. Like the famous eddy example, which for all practical purposes, does 'literally', however temporarily, exist and is not anything else at that given moment. According to me, awareness is, being absolutely and fully aware of the underlying illusory nature of things at all times, and at the same time, at all times, being absolutely aware that logical perception although illusory in nature, is no deception. After all, it is that very perception that leads you to self-awareness, and a logical awareness of existence.