Castrated pony or Stallion?

"We castrate the gelding and bid him be fruitful." -C.S. Lewis

"All his life Gary had been a good boy. A gelding. And geldings, though they are nicer and much more well behaved than stallions, do not bring life. They are sterile."
-John Eldredge (The Journey of Desire)

Do you give the horse his might?
Do you clothe his neck with a mane?
Do you make him leap like the locust?
His majestic snorting is terrible.
He paws in the valley and rejoices in his strength.
He goes out to meet the weapons.
He laughs at fear and is not dismayed;
and does not turn back from the sword.
The quiver rattles against him,
the flashing spear and javelin.
With shaking and rage he races over the ground;
and he does not stand still at the voice of the trumpet.
As often as the trumpet sounds he says, Aha!
And he scents the battle from afar,
and the thunder of the captains,
and the war cry.
-Job 39:19-25

What kind of horse are you?
Safe and good but sterile horse
or wild, strong and potent stallion?