Remaking is the process that the Others use to "reboot" an Arweinydd back to their original light-energy form. This erases all development, emotional attachments, memories and physical forms the Arweinydd has created. Zemi Dreigiau has likened this process to the Earthian death.
The concept of Remaking is thought to be the best way to deal with rouge Arweinydd who stray too far from the norm. The Others felt this was the best alternative to allowing an Arweinydd to become too swayed by the forces of Chaos and Creation, which they feel led to the original Mistake in the Time Before.