Depends whether you mean... others who were in the deceased's life or said deceased? For whomever died, I'm sure it's much like it was before their existing (before conception, birth, etc.) What a person's death causes and how it affects lives of others still within their own reality of existence is a different story. self-preservation instincts aside, I'm not really afraid of my own mortality, in and of itself. For people who've died,there's no mais tears for them, they wont ever have to feel heartbreak again. It's what is left behind within the reality of others who are still living. That's what I find unpredictable and terrifying....
I believe that our consciousness lives on after the body stops functioning. Where does our consciousness go afterwards? I don't know, but I do know that our consciousness does continue on in this physical dimension.
I remember once when I was at my late aunts' house (different, nicer aunt), I could swear I felt a presence there when I was in the hallways. I couldn't tell who it was, but someone definitely was still there, despite me not being able to see them. In fact, that whole place was weird after her death.
In short, I believe we continue on in the form of energy (consciousness).
I believe in cristianismo so I think there's a heaven. I don't believe in Organized religion though. It's also a possibility that according to whatever religion or the absence of religion your afterlife whatever correlates to said beliefs or absence of belief system.
I believe when you die, it will be pitch black at first then you will go into the light and you will see anjos in heaven were you see your amor ones waiting for you. You will be in a better place and no longer suffering. you will be with your loved ones/relatives who are already deceased. Note: If you see a red carnal outside it means your loved one Is looking out for you.
I would like to be hopeful and think you would be reunited with deceased loved ones but deep down I believe that it is nothingness. Complete peace, no feeling, no afterlife, it just ends, and that's ok.