"you renew the face of the ground"

The drought seems to be over. Tropical storm Isaac brought heavy rains, and now everything is green again. I prayed these lines from Psalm 104 this morning:

From your lofty abode you water the mountains;
the earth is satisfied with the fruit of your work.

You cause the grass to grow for the cattle,
and plants for people to use, to bring forth food from the earth,
and wine to gladden the human heart, oil to make the face shine,
and bread to strengthen the human heart.

The trees of the Lord are watered abundantly,
the cedars of Lebanon that he planted.
In them the birds build their nests;
the stork has its home in the fir trees.
The high mountains are for the wild goats;
the rocks are a refuge for the badgers.

You have made the moon to mark the seasons;
the sun knows its time for setting.
You make darkness, and it is night,
when all the animals of the forest come creeping out.
The young lions roar for their prey, seeking their food from God.
When the sun rises, they withdraw and lie down in their dens.
People go out to their work
and to their labor until the evening.

These all look to you
to give them their food in due season;
when you give to them, they gather it up;
when you open your hand, they are filled with good things.
When you hide your face, they are dismayed;
when you take away their breath, they die and return to their dust.

When you send forth your spirit, they are created;
and you renew the face of the ground.