On a similar note to what's been mentioned, it was very tiring for me to operate at green ray when I was depressed with life (red ray), lacked self-acceptance (orange), and felt powerless (orange-yellow) and awkward in social situations (yellow). I worked with indigent accused, and I saw a lot of people draw to the same sort of work based on a deep desire to serve others.
However, when these people would serve others, because of their own stressors, they would fall back on "forcing" themselves to serve others, and grow completely exhausted (myself included) with their efforts, and remained in a perpetual state of being burnt-out.
When I began to balance myself, the green ray started to flow naturally. I wasn't serving others or vibrating green because it was the "right" thing to do, or because it furthered some goal of helping people (though it did), I did it because that is who I am truly am, and it flowed without much effort.
You similarly see this play between flowing into the green and forcing into service to others in the Ra channeling. There are numerous discussions of Carla's vital energy, and how when she tried to serve others by channeling but had periods of distortions, she would augment the energy needed with her own vital energy. Ra recommended that this technique would be deleterious to her and suggested that the distortions be dealt with (but they also accepted the technique by continuing to channel through her).
So in the end, if green ray seems exhausting, I think it's really just an indicator of other unaddressed distortions. Mostly likely in the red/orange/yellow rays. I know it was for me.
However, when these people would serve others, because of their own stressors, they would fall back on "forcing" themselves to serve others, and grow completely exhausted (myself included) with their efforts, and remained in a perpetual state of being burnt-out.
When I began to balance myself, the green ray started to flow naturally. I wasn't serving others or vibrating green because it was the "right" thing to do, or because it furthered some goal of helping people (though it did), I did it because that is who I am truly am, and it flowed without much effort.
You similarly see this play between flowing into the green and forcing into service to others in the Ra channeling. There are numerous discussions of Carla's vital energy, and how when she tried to serve others by channeling but had periods of distortions, she would augment the energy needed with her own vital energy. Ra recommended that this technique would be deleterious to her and suggested that the distortions be dealt with (but they also accepted the technique by continuing to channel through her).
So in the end, if green ray seems exhausting, I think it's really just an indicator of other unaddressed distortions. Mostly likely in the red/orange/yellow rays. I know it was for me.