Hayyah (Hebrew) [from hayah life, vitality.] Sometimes Chiah, Chayah, Hay-yeh, etc. Life in the abstract; as an adjective, living; a living being or thing, and hence often a beast or an animal; in a collective plural, living beings including human beings.
In its connection with nephesh, equivalent to the Greek psyche or Latin anima, there is frequently found the phrase nephesh hayyah (living creature). Equivalent also to the Sanskrit prana or vitality; and when considered as an entity, it corresponds closely with the astral monad, for prana or vitality must have its astral vehicle or body to work through, such as the linga-sarira.
The vital spirit or spirit of life runs throughout all the seven principles whether human or cosmic, so that there is a direct and distinct application of this word even to the highest or spiritual part of any being. Indeed, life itself which permeates the entire human and cosmic constitution is derived originally from the spiritual monad, which explains why hayyah is connected in meaning with neshamah (spirit), being equivalent to buddhi.

Hayyah (Hebrew) [from hayah life, vitality.] Sometimes Chiah, Chayah, Hay-yeh, etc. Life in the abstract; as an adjective, living; a living being or thing, and hence often a beast or an animal; in a collective plural, living beings including human beings.
In its connection with nephesh, equivalent to the Greek psyche or Latin anima, there is frequently found the phrase nephesh hayyah (living creature). Equivalent also to the Sanskrit prana or vitality; and when considered as an entity, it corresponds closely with the astral monad, for prana or vitality must have its astral vehicle or body to work through, such as the linga-sarira.
The vital spirit or spirit of life runs throughout all the seven principles whether human or cosmic, so that there is a direct and distinct application of this word even to the highest or spiritual part of any being. Indeed, life itself which permeates the entire human and cosmic constitution is derived originally from the spiritual monad, which explains why hayyah is connected in meaning with neshamah (spirit), being equivalent to buddhi.