I dreamed that I was in a pet store buying a new guinea pig knowing I already have too many, and that I might have actually forgotten about some that might have died of starvation, only to hear the low rumble of the sun exploding. I realized what that meant, that I would die soon, a few seconds really, and I felt a peace like I haven't in a long time.
This dream may represent a sense of guilt or responsibility that you may be carrying in your waking life. The pet store could symbolize the choices and responsibilities you have in your life, and the guilt you feel for neglecting certain aspects of it. The exploding sun may represent a sense of impending doom or finality. However, the peace you feel in the dream could be a reflection of your subconscious's acceptance of this fate - the idea that the end is near and there's nothing more to be done. It's important to reflect on any responsibilities or issues in your waking life that may be causing stress and to seek closure or resolution where possible.