Alone In White - A Reoccurring Dream

I have this reoccurring dream that I will detail below, but I think I finally caught on to when it comes back. I don't remember the first time I had the dream, but I realized this time it always happens when I'm going through an existential crisis. When I have questions about what I am doing, where I am going, what I should be doing, what I have done, and so on. I seem to always go through these cycles. I always get to a point where I ponder a lot, I ask a lot of questions, and then act on what I gathered. It usually results in me being pleased about working toward something, but then I get semi-complacent. I casually ride the steady waves for a bit, and then I find that I need to re-organize and re-boot. I always need to improve myself. I worry that I am going to waste my life. This reoccurring dream isn't set in reality. I am on an island with my friends and family. The island doesn't sit in the middle of a body of water. Instead, it is surrounded by nothing. If you sit on the edge of this island and look out, it appears like a giant white wall is in front of you. However, there is no telling where the wall starts and ends. Try imagining a horizon of "nothing", or at least the closest we can imagine "nothing". What I mean by that is, even if you imagine "nothing" you are imagining something. It is impossible for us to imagine nothing, but that is a different blog. The island isn't as depressing as it sounds. I am there with my friends and family and the island is self sufficient. There is clean water, the climate is comfortable and great for producing plenty of food. The island isn't big and a lot of times we have to plot out the area carefully, but it's just enough to live comfortably and happily. Everyone on the island is happy, however, we are planning to leave. There is a promise that a ship will come and take us from this island. When you take a step off the edge of the island, you don't fall into water like a normal island. You just fall. And you probably fall forever because there seems to be no floor. Everyone is diligent about never flirting with the edge of this island. The day the ship is supposed to arrive comes up. We pack and prepare the day before. Things get hectic, but we know just a single day of meticulous planning and work and we will be set free. Night comes and everyone is asleep, but I'm unable to do so because of the anticipation. I get up to check everything over one last time. All our belongings are near the edge of the island because we wanted to load the incoming ship as quickly and efficiently as possible. As I am checking over everything a piece of the island crumbles and I lose my footing. I slip, but I'm able to grab on to the edge of the island. I need assistance, but I can't produce a sound. I don't worry too much because I know everyone will be up soon and will come to where I am because they will need to board the ship. Eventually the time comes and everyone works quickly to load everything we organized the day before and hop on the ship. As I hang on the edge with my forearms burning, I watch the ship leave. I try mightily to yell, but still nothing. I justify in my head that someone will eventually recognize that I am not there with them. After all, they are my closest friends and family. I tell myself to focus on gripping the island and that I should see the ship returning in no time. Days pass and I feel my grip becoming weak. My forearms are on fire and my knuckles are ready to burst. I don't know how much longer I can hold and there is still no ship in sight. I haven't heard a single sound produced by this universe of nothingness. Then I wake up. I always feel uneasy, and I don't know what to think of this dream (maybe nightmare). I usually shrug it off until I have it again. There is probably a lot of symbolism in there and something I'm trying to tell myself. Maybe I should pay attention more.