The water droplets hung onto the tips of the green pine needles like jewelry worn to accessorize the wearer—not overbearing, but noticed.  Water droplets from the morning fog are still lingering here and there over the lake.  Waiting for a destination, either fall to the ground below or wait for the heat from the rising sun to evaporate them back to the air to fall once again at some point. 

The same heat warms the ground, creating a warm bed of rocks and pebbles.  Those rocks and pebbles hold the heat, waiting to pass it along, to the snakes.  The snakes lay still, their bodies absorbing the heat from the sun above and the ground below; heat, water, snakes.