What listens

David George Haskell spent a year attending to one square meter of old-growth forest in Tennessee. What he found, documented in The Forest Unseen, was that sustained attention to sound changes the listener. A thrush’s song becomes a specific thrush, in a specific territory, singing for reasons the ear can eventually parse. Attention doesn’t add anything. It reveals what was already there.

That’s not a bad description of zazen.

Late May, and the season has opened fully. The ango practice periods that began in March are closing — SFZC wraps its spring sitting with a Saturday one-day sitting on May 30, oryoki and all. Memorial Day weekend marks the unofficial hinge into summer. The light lasts past eight-thirty. And the retreat calendar shifts: alongside the sesshins and zazenkai that run year-round, something else appears. Retreats that take practice outside.

The most distinctive is The Wonder of Bird Song at Green Gulch Farm, May 27–30. Three days alternating between zazen and guided bird walks led by naturalist Zac Denning. The structure is deliberate: you sit in the zendo, then walk into the coastal hills of Marin County and practice the same quality of attention with birdsong as your object. Learning to distinguish a wren’s territorial call from a sparrow’s alarm note uses the same faculty you’re training on the cushion — receptive, unhurried, willing to hear what’s actually there rather than what you expected. Green Gulch has developed this format over years, treating nature observation not as a break from practice but as its extension. The mornings and evenings are when the birds are loudest and the fog thinnest; the schedule follows their rhythm, not yours. $315 residential, beginner-friendly. Bring layers for the early outings — May mornings in Marin are cool enough to see your breath.

The same weekend, something simpler. Outdoor Practice Day Hike with Boundless Way Zen Temple in Worcester, Massachusetts, on May 31. Morning zazen at the temple, then a silent walk to Cascades Park — kinhin through actual woods rather than around a meditation hall. Lunch in the field. Afternoon reflection in the temple garden. Fifteen dollars. Walking meditation usually means ten careful steps along a polished floor; this version means tree roots, uneven ground, the body navigating terrain while the mind holds the same attention it held on the cushion. If you sit regularly and want to know what your practice does when it leaves the building, this is a low-stakes way to find out.

Then, three weeks out, the solstice itself. Holding Up the Blossom: A Summer Solstice Zazen Arts Immersion at Zen Mountain Monastery, June 18–21. Four days of residential zazen paired with creative practice — painting, writing, movement — held inside the monastic schedule around the year’s longest light. Led by Jody Hojin Kimmel and Katie Yosha Scott-Childress. The retreat doesn’t treat art as illustration of insight or sitting as preparation for making; it asks what happens when the two are held as a single activity, each informing the other inside silence. The title borrows from the Flower Sermon — the Buddha holding up a blossom, Mahakasyapa smiling, the whole teaching transmitted without a word. $400 residential in the Catskills, where the summer canopy is dense enough by late June to change the quality of light in the zendo.

Haskell, toward the end of his year of listening, wrote that the forest taught him not to seek particular sounds but to attend to the whole — the thrush, the wind, the silence between. Late May is the season when that field widens. The zendo walls, useful all winter, become optional. The practice doesn’t change. The room gets bigger.