Answer:
True.
Haikun the author of "Past, Present, Future: Unattainable" is a Zen Master.
Explanation:
The Zen Master whose full name is Hakuin Zenji was born in Sugiyama Iwajiro, a small Japanese coastal village at the foot of Mt. Fuji.
The poem in question is:
<em>"Past, present, future: unattainable,</em>
<em>Yet clear as the moteless sky.</em>
<em>Late at night the stool’s cold as iron,</em>
<em>But the moonlit window smells of plum".</em>
<em />
Cheers!