It is not true that you actually leave behind (after death) your legs, feet, hands, arms. It is indeed untrue. You say that because you still cling to Maya, the great illusion.
What indeed with the ordinary consciousness you refer to as your arms, hands, legs and feet, are not your arms, hands, legs and feet at all, but what as blood and other juices fills out the real arms, hands, feet and legs. This again is a difficult idea but it is true. Suppose that here you have arms, hands, feet and legs, but that what is here is spiritual, spiritual forces. Now please to think that your arms, hands, legs and feet are forces — super-sensible forces. [….]
What you leave in the grave or what is burnt is only what might be called the mineral enclosure. Your arms and hands, legs and feet are not visible, they are forces and you take them with you.
Source: Rudolf Steiner – GA 183 – Mysteries of the Sun: Lecture III – Dornach, 26th August, 1918