One place, pressure, temperature,
The Triple Point,
aqueous molecules skip between
solid, liquid and gas
the salsa between states - identical.
No growth of ice
water does not accumulate
nor vapour pressure rise
because the waltz, one to another, is equal.
So the three coexist suggesting stasis
while constantly exchanging substance;
a symmetry of balanced dancing stability.
Written as a meditation on the Trinity while on retreat at St Beuno's in North Wales. The triple point of a substance of the exact temperature and pressure when the solid, liquid and gas phases of a substance are in equilibrium.