Spatial relevance basically means how you relate to and use the space that's around you. In the case of how to get a girl in bed, it means the space between you and her. In Western cultures, we define personal space as about a foot-and-a-half to three feet. If you get within this range too fast with a girl, you're going to cause an actual physical reaction of discomfort in her own body.

Here is something that you can do to better understand this. Experiment with a friend. Face each other from five feet away and start talking. Gradually move the conversation closer about a foot at a time. When you get to about a foot from each other, you'll feel how weird and uncomfortable it is.

The Approach

When you first approach a girl in a bar or club, you should allow quite a bit of space. Get close enough to have a conversation but stay well outside of her personal space bubble. If it's crowded and you're packed close, use something as a buffer like your shoulder or a bar counter.

Push-Pull

One thing you can do with spatial relevance to seduce women is to go in and out of her space. For example, step in close to tease her, whispering something in her ear maybe, and then take two quick steps back. This gets her used to the idea of you being in her personal space. It creates comfort when you're close, and actually causes discomfort when you're out of her space. Again, experiment and you'll see how this works.

Escalation

Just like touching, you want to always be getting closer. Every five minutes or so, you want to bet getting slightly closer. The way to do this is what's called "cutting," and it's important to lead from the hips. Keep your upper body back while your lower body advances forward. This allows you to cut into her space without making a huge, noticeable movement. Another way to effectively cut space is to distract her while you're doing it. Point out somebody in the bar who's dressed badly or something, and when she's looking there, move in.

Eventually, you'll want to keep doing this until you've got skin to skin contact. Keep an eye on her, though, and make sure you know her comfort level. Her comfort level should be gradually increasing as she lets you into her personal space. Spatial relevance is a key factor in how to get a girl in bed.