The process of transferring living tissue from one location to another. Due to the intimate relationship between body and spirit, transplanting organs from one person to another could provide a physical benefit, but not necessarily a spiritual one.
To suggest that it is better to give sight by grafting from another ignores the problem of the spiritually blind and the fact that we are of this world and not of this world.
However, where transplants do occur, organ could be accepted more easily from counterparts, enabling a sub-family element to operate within a physical body.