"The space around a thing is as important as the thing itself," said Isamu Noguchi, one of the most famous sculptors of the last century.
Landscaping Peace Poles:
Anything done to the landscape helps, anything that shows thought and attention beyond sticking it in the ground. Anything that points to it or leads to it. Anything that frames its presence, like surrounding it with a circle of mulch or gravel or pavers. One rock could be set in the ground a few feet away on each side of it, or lights could point at it (or be inside of some peace poles. Even contours in the ground, or barriers like hedges. Even trees hiding it can help.
The granite peace pole at right has multiple paths that begin at different places but all end at the peace pole - different journeys to peace. The monoliths around it provide places to sit upon arrival making it a destination. It can become a place that motivates people to say,
"Meet me at the peace pole"
What if you made a simple form, perhaps out of a wooden 2 by 2 that you set on the ground, in which to make a cement stepping stone 18 inches square. What if once a week you made one according to a plan? Over a period of years the results would be impressive.
At this link more can be read about the granite peace pole shown above.
People tend to want their peace poles situated as though they were billboards shouting at the world with large text, high ground, and visibility from a distance.
Long ago there was a period in English garden design did the opposite to great effect. It hid the most important feature of a garden where it had to be discovered. The hope was to make people feel as though they had stumbled upon something few others ever had seen. It created a sense of privacy and intimacy, a sense of having found a place to which they could retreat in the future for respite, or maybe even peace. Rather than high visibility and a peace pole that shouts, the message might more powerfully be communicated when whispered in private.
Audiences having to work to find your message, and perhaps work to understand it, has a draw and a power that is under appreciated.
Looking through a crate of books for one specific one leads to discoveries that would not have been made if they had been in alphabetical order. There is a place for order alphabetical order of a dictionary. There also is a place for the unalphabetical design of a novel or poem. Garden design can follow the same principle.
A message that is not blatant can lead to discussion about the meaning that gives the message a greater presence in individuals and the community. The first thing art should be is interesting. A little obscurity can help it be that.
A little controversy can too. If, as rarely happens, you end up confronting some, the bright side from which to view it might be the extent to which it increases awareness of the peace pole. It might be uncomfortable to go through, but would having no one notice or care be better? Half of Paris hated the Eifel Tower when it was built.