Celestials of the Christ Office
In the context of The Lily and Beyond, when we speak of the Christ we are referring not to a man but to the universal spirit of God who wishes to dwell inside men.
Messiahs were not exclusively Jewish. The concept of 'the' Messiah as a single individual is a strictly post-Biblical tradition as it is not found in the Old Testament.
"Christ" is the English term for the Greek Khristos, meaning “one who is anointed or appointed by God with a unique purpose or mission on Earth." Christ Office is a body of these anointed ones (e.g., ascended masters, deities, Jesus, Krishna, etc.)
In Buddhism, Gautama Buddha and Guan Yin are examples of anointed ones. In Christianity, there's Jesus Christ, Enoch, Melchizedek, Blessed Virgin Mary, et al. In Hinduism, there's Krishna, et al. We mention only the popular ones although there are many of these anointed who are unknown and uncelebrated, albeit no less numinous.
A better way to understand the Christ Office is to know it as a level of spiritual attainment. All the "insiders" in the Christ Office have achieved Christ Consciousness, which is a consciousness of God's Oneness with All.
Hence, when we speak of the Christ Office, we are referring both to a level of spiritual attainment AND a body of such anointed ones.