Translation of "earthbound" into Spanish

You know, every earthbound spirit belongs in the light.

Tu sabes, cada espíritu atado a la tierra pertenece a la luz.

If you can call this earthbound existence living.

Si es que puedes llamar a esta existencia pedestre vida.

I was happy with my life, even though I was short, earthbound, and only mildly athletic.

Era feliz con mi vida, aunque era bajito, prosaico y solo moderadamente atlético.

It is no longer a pale brown, earthbound insect —now it can fly.

Ya no es un insecto terrestre de color marrón pálido, ahora puede volar.