Interesting！According to ChatGPT:

来源: 于 2023-09-24 15:41:29 [旧帖] [给我悄悄话] 本文已被阅读：次

The term "eidolons" can be translated into Chinese as "幽灵" or "偶像" depending on the context. In the context of Walt Whitman's poem, it likely refers to "幽灵," which generally means spirits or specters.