Cecil reached the thirtieth step, and like she predicted, she felt the sensation of a wall. She rubbed away the sweat on her forehead, panting lightly, searching around once again for the gate.
The author was vague in their descriptions of the gates. The author stated that the gates, when opened, reveals a different world for every two gates that were opened, and it was different for every element.
The familar sight of the earth insignia hovering as a single line cut right through it somehow comforted her. She smiled softly, pushing the gate open.
Ah.
So this is how they know it's a different gate.
Her environment, which was no longer the clearing but the courtyard, has changed in its colour once again. The dull green from before was now a few shades brighter. Behind her, the earth insignia on the ground started to flicker and it grew brighter and brighter with each passing second.