After honing your base blue gear to higher enchantment levels you may acquire purple or orange set gear from Abyss Dungeons, or gear with higher quality, in these cases you'll want to transfer the existing honing progress from one piece of gear to another rather than re-enchant from scratch on the new item.

Timestamps:
00:00 Where To Go
00:07 Transfer System Purpose
01:15 Transfer System Demonstration
02:03 Outro