As above, so below. As behind, so before. On one hand, and on the other.

+ as the point (here/surface) where air/heaven/above meets ground or water/below and extends outward/directionally

Going from here to there and, potentially, returning.

Liminality. Borders. Doors. Bridges.

Travel. Journey. Exploration.

Cross purposes. Don't cross me. Feeling cross. Bearing crosses. Crossfire.

Wait for the crossing.