Hi Disa,
I pulled this card yesterday and I've been having trouble with it too.
I haven't meditated with this one yet and maybe when I do I'll get some more insights into it.
The people supporting the monolith seem almost to blend into each other, to become the earth, the ground, the thing that supports the central pillar, without them it would fall down. It almost appears to be growing from them...
I think this is an important message of this card, without the support of the people The Emperor will fail so no matter how much power he has, no matter how far above the mere mortals he is, he needs their support or he can't do his job. He must be a fatherly, kind Emperor or the support will go away.
I think the poem that goes with this card points to that too:
f you think
Your single life matters
You are wrong
What matters
Is the Great Plan
What matters
Is how you may serve
Here's an image of the card with some text from the deck author:
http://www.croneways.com/major4.html