ghost exist? yea..i do believe.
ghost = the willingness of one's mind to exist/appeal again!
as we all know, we have parts of our brain that we can't access. Just like when we are sleeping, our mind still moves. wE even get premonitions from our unconscious mind. So... i think it's about the same. When we die, our spiritual minds still functions. therefore we appear as ghost without knowing it..
wait---- forgive me. I'm very bad at explaining. you wont get what i mean.
in short: yes. i believe in ghost ^^"
gomen for the confusion ^^