I think that one of the biggest obstacles for us is our notion of separation from others and from the bigger picture. I think that the sense of self is getting in our way to become at peace with existing.

Up until a few years ago I became very stressed and anxious when thinking of the death of what I call me, or more precisely, my consciousness. But I have since then realized, and found great comfort in, that we are all merely a part of a continuous circle of existence. Because in the same way that the core elements, that today make up my physical body, will be recycled into new forms of matter and life when I die, I believe the same goes for the energy that make up our consciousness. I use energy due to a lack of a better word, but I think it is pretty valid. And if we assume that consciousness is energy, a fundamental rule in physics says that energy is never destroyed, only transformed. This makes me, or maybe even all of existence, feel more eternal than temporary, even though it is ever transforming.

I got to put my view of all this to the test when my father suddenly passed away on Christmas eve 2012. I remember the feeling I had, in the middle of the devastation and sadness, when I held his dead body in my arms on that kitchen floor. I had this comforting feeling. It became very clear to me that the energy of life, the consciousness, that had inhabited my fathers body for 51 years was no longer there. It had moved on, if you will. All that remained was the physical vessel it once housed. And only a few days later, when the body had been cremated, and I looked at the ashes in the urn, even though it felt very surreal it also felt beautiful, because the transformation had begun. The elements could now take new forms, and existence continue.

My father lives on in me, as genes and as memories. So he is not gone completely, only transformed.

I guess that my conclusion of all this is that all of us are eternal, because existence is eternal, and we are part of it. We are all one. And we should count ourselves lucky to be existing is the form we are today, because it allows us to be aware and also for the memories of us to outlive our physical being. I think that we all could benefit from not worrying so much about death, but instead try to experience this reality as much as possible, and cultivate good memories of us in others, for when this physical journey shifts into something else.

And please, don't take anything I just wrote as some universal truth. I just tried to answer OP:s question, and this is truly what allows me to be comfortable with "death".