Dreams about dying can often symbolize transformation or significant change in your life rather than a literal fear of death. Falling through space and time may represent feelings of being lost, overwhelmed, or in transition, as if you're navigating through the unknown.

The two large iridescent koi fish guiding you into the afterlife suggest that you may have support in your journey. Koi fish are often associated with perseverance, strength, and good fortune in many cultures, particularly in Japanese symbolism. Their iridescence might indicate a sense of beauty or enlightenment during this transition.

This dream may be prompting you to consider what changes you are currently experiencing and how you can embrace them. It could also be a reminder to seek guidance from those around you when facing uncertainties. Reflect on what aspects of your life might feel like they are "falling" or changing and how you can navigate that journey positively.