Almost everyone has felt it: you walk into a room or hear a phrase and suddenly feel certain you've lived this exact moment before. Science hasn't settled on what déjà vu is. I see it as one of life's small mystical experiences, a moment when the veil thins.
Sometimes, yes, a past life
Déjà vu can be a past life memory surfacing. Visiting a city you've never seen and knowing your way around, or feeling an instant, inexplicable bond with a place, can point to a lifetime spent there.
More often, something stranger
In my experience, though, most déjà vu belongs to this lifetime. The idea that has helped me most comes from Seth Speaks by Jane Roberts. It describes "probable" realities: every choice we make branches into alternative outcomes, and other aspects of ourselves may be living those paths at the same time.
If that's true, déjà vu could be a brief overlap, a moment when your current awareness brushes against a parallel version of you who has already walked this path. The familiarity is real. It just comes from a direction we don't usually look.
Other places the veil thins
The same kind of crossover can show up in vivid dreams and deep meditation, in experiences that feel more like memories than imagination. Paying attention to them, without needing to explain them, can be its own spiritual practice.