Your BODY can be compared to a car.
Your SOUL is the driver of the car.
Your BODY (the car) is just the vehicle to carry the SOUL (driver) through life.
The car (your BODY), can get damage along the way (during lifespan). It get’s minor dents (minor illness), scratched (when you hurt yourself), hail damage and dents (old age). Then there is a major accident and the car (your BODY) get’s scrapped (when you die, your BODY is dead but your SOUL is still alive and moving on).
You have to buy a new car = your SOUL (the driver) is still fine and it reincarnates into a new body.