Dialogue System w/ Gameobject [ ] ?

Hello, I’m looking for a advice I want to use "Gameobject 134063-12.jpg
What method can be the answer? Example:

foreach (GameObject mirror in mirrors) 
{
//turn on first mirror and turn on the next one
}

private IEnumerator EnableMirrors()
{
WaitForSeconds wait = new WaitForSeconds( 1 );
int i = 0;
mirrors*.SetActive(true);*
for( ; i < mirrors.Length - 1 ; i++ )
{
yield return wait;
mirrors*.SetActive(false);*
mirrors[i+1].SetActive(true);
}
yield return wait;
mirrors*.SetActive(false);*
}