After Life

Now that you know the various parts that make up a person, we can get back to the question of the soul. As you can see, it is not that simple of a question without a context. Most people are worried about what happens to their soul when they die, so we will use that context.
There are plenty of places in the Worlds for a person to go when they lose their Aethem. The actual location is not based on a "judgment" but more on a harmonic. You end up in the place that resonates most with you during your life. You are very unlikely to have the benefit of a deathbed conversion in Heathenry.
For most people, they will take a wide and easy path where they will meet up with ancestors and others who have passed before. The parts of you that hang together for this trip are the Hyge, Mod, and Myne. This is usually the necessary parts for being who you think you are and interacting with your loved ones on the "other side". Your Fetch will run free with its own business. The Hama will have done its job. There's no further need for the Maegen or Wod.
That's not the end of the story, however. There are way too many exceptions. Not everyone takes the Wide Path. For some, the Hama may be so strong that it sticks around to protect the family or community to which it was attached. If the Willa is strong enough, the parts outside of the Body may decide to stick together and accomplish things (hopefully, good things). A strong shaman-like person (seid or vitk) may go on in an incorporeal state throughout the Worlds, possibly working directly for the Gods.
Of course, those exceptions require great strength. There is the other end of the spectrum. If you are too weak, some or all of your parts can dissipate. I don't mean just physically weak, this is about the spiritual parts. Everyone's body will die and decay. The survival of the non-physical parts requires enough energy to make the transition. Just as doing good works and living a good life add strength to the spiritual parts, doing a bad life can cause damage. However, doing nothing is worse.
A life wasted through apathy is a life that decays. Entropy will whittle away at the spiritual pieces of you just as much as it will rot your body. Adding the use of drugs or abusing food makes things worse. If you waste away, your spiritual components may not have the strength and cohesion to survive death.
This isn't about physical disability. Disabled persons can do what they can to build strength on the spiritual side through mental and spiritual exercise. The Havamal tells us that no one is inherently useless; everyone must do what he or she can within his or her limitations. No, the ones who dissipate are the ones who didn't try.