It’s very simple. If there are ghost then some part of us survives death, which means WE could survive death. And not everybody sees ghosts, so anybody that’s got a good ghost story gets to be the center of attention for a while. It’s ain’t that tough to understand, unless you decide to take it personally. Why do you take these concepts as personal insults?
That is assuming we know what death is.
Actually we only can hazard guesses and that's all we've been able to do for the past what, 5,000 years?
My bible tells me I have eternal life, or at least a chance at it. So I am perfectly comfortable with the idea of life continuing, if along other venues than this one we presently inhabit.
It’s much simpler than your explanation.
God made man in Body, Soul, and Spirit. Each has a system of perception. The 5 bodily senses of touch, smell, hearing, sight, and taste are our bodily perceptions. The philosophical system using those perceptions is Empiricism.
The philosophical system using the perceptions of the soul is Rationalism.
Faith is the system of perception of the human spirit.
Every human being has the first 2 systems of perception, but God originally created man with all three. In the Garden of Eden at the Fall and first sin, man was separated from God spiritually. He died spiritually. Every human being (except for Jesus Christ), was born dead in the spirit and lacking those perceptions of the human spirit.
Just as our body can influence the soul, and the soul can influence the body, so too does the human spirit influence the soul, and the body, and visa versa.
When we have faith in Christ and believe in Him, God regenerates our human spirit, which is where God the Holy Spirit, then indwells us. He performs His work in us through our human spirit, while we remain in fellowship with Him.
Regarding the original topic of ‘ghosts’, they also are called ‘spirits’, though the two terms are not fully identifiable in their groups.
The Son of God (the 2nd person of the Godhead in the Trinity) is identified as having created all things and persons which can be created. He has authority over all things. He is also one with God the Father.
It is true, that whether it be a ghost or an angel, He has authority over that person. He has authority over bodies, souls, and spirits. Our faith is through Him first in all things, if we are walking in fellowship with Him. He will not allow us to endure any temptation too great than what we may resist.
For unbelievers, ghosts and fallen angels/demons are not as benign. They might have the ability to actually possess one’s soul and indwell our bodies. This is the topic of demon possession.
While rare, it does exist. More frequently experienced is demonic influence. We might have thoughts which didn’t originate with ourselves, which we occasionally perceive, giving evidence of this occurrence.
Attempting to rationalize or empiricise spiritual phenomenon is foolishness, because it originates from a different domain. This doesn’t make it any less real.
When people experience an encounter with a ghost, it ISN’T a normal encounter. Frequently it is characterized by the spiritual domain, because it IS spiritual. Those who are dead to the Spirit, will think it’s foolishness, because they lack the faculties to perceive spiritual things. They then will attempt to rationalize or empiricise the reports to fit their worldview.
Those who are atheist, may tend to identify the reports as a form of approbation lust, such as your suggestion people want to be the center of attention.
Many who report about ghosts are sharing their experience, because they realize their experience doesn’t fit into the norms of physical or soulish behavior. It does manifest facets unique from our physical and soulish experience. Until they have faith in God and His Providence, and mature as believers, they probably continue to have questions of that domain.
Many of our dreams are influenced by spiritual phenomenon. Angels may test us in our development. They might use our memory to stage events to test our volition and our faith, or doctrine, how we respond to different situations.
Many descriptions of ghosts identify a person, volition, and emotion, but rarely fellowship with God, unless identified with ‘Guardian Angels’. These are consistent with the spiritual domain.
If one wants to study the spiritual domain, study the Word of God. He is veritable and with supreme authority, which is something not attributable to other spiritual influences. ...and there also exist deceiving spirits, so caution is exercised appropriately by remaining in fellowship with God through faith in Christ.
We are to pray without ceasing, always walking with Him, and performing by His Plan. The Christian walk IS a spiritual walk. There is no better guide to understanding that domain than by His Word.