I'm posting this here since it's happening in my workplace (a non-profit organization) though it definitely touches on other issues as well...let me know if the topic should go elsewhere. Also, I'm trying to make it as coherent as possible, but please bear with me - it's a rather emotional subject for me, as will no doubt become clear below...
On March 1st, our organization lost a dearly beloved volunteer. He'd been with the org. for decades, and because he suffered from several long-term illnesses and was on disability he was able to dedicate himself full-time to helping out in a variety of ways around the place. He passed from an apparent heart attack, somewhat unexpectedly, though to be sure he'd never been in good health. It was very sad of course, and he was by and large dearly beloved by everyone here, but at the time I felt that it was a good thing for him, since his physical body had been such a source of pain and hindrance to him over the past 20 years or so.
The night that he passed (I had already been informed of his passing) I had a particularly powerful dream where he came to my office to tell me some things that needed to be done, and to tell me to make sure that they weren't neglected now that he was dead. I found from talking to my co-workers the next day (none of whom are pagan or believe in ghosts, to the best of my knowledge) that many of us had had extremely similar dreams that night. I chalked it up to Marshall's final farewell and had a good chuckle over the fact that he would come all the way over from the other side to take care of his leftover business (very in character for him!) I didn't really hear anything of him after that for a few weeks.
About three weeks or so after his passing, I kept hearing, smelling, and sensing him around the campus (he had a strong and distinctive smell due to the fact that his illness produced open sores on his legs). I heard his voice as if from a distance a couple times, too faint to hear the words but still recognizable, and I often heard his cane tapping around in the rooms he often occupied. I found it unsettling to a degree that I couldn't have expected - by and large I'm comfortable with the concept of spirits lingering in places they loved, and thought maybe Marshall had taken up a role as protecting spirit or genius of the facility he loved so much - but I still felt a sense of paranoia and fear produced in me by the presence of his spirit, more similar to what I've felt in the presence of angry or violent ghosts, poltergeists, etc. despite the fact that I felt no sense of hostility or unhappiness coming from his ghost.
Most recently, he's been visiting me in my sleep - once a week or so, maybe more. Again, the dream encounters have been incredibly positive and pleasant - he's been happy, healthy, at peace, and our conversations have been very friendly and positive. However, upon awakening I've felt that same sense of incredible unease, fear, and paranoia. It's actually at the point where I've been having a hard time participating in daily life with the disturbance.
I'm normally a pretty centered person, not easily disturbed by ghosts - I once encountered a former murder victim in the apartment next door to mine, for example, and had no trouble sleeping or relaxing that night (next door to an angry murdered ghost!). But for some reason, this apparently happy, peaceful ghost is causing me no end of trouble.
I'm not really sure how to proceed. It's at work, so I don't really feel comfortable drawing a circle, holding a seance, or any of the normal things I might try to ask a ghost what's going on. I don't want to ignore or neglect him, since he seems to be working so hard to say something to me...but everything he's said so far has been pretty generic, and I'm not sure how to force the issue.
Anyone who has experience dealing with these kinds of spirits - help is appreciated!