This technique requires that the user be in physical contact with the ground. It renders the user able to sense and interpret vibrations, such as those made by walking, allowing the user to make an Awareness roll even where a target is unavailable to conventional senses. The target must also be touching the ground, and must be moving. If successful, the user learns (and can thence keep track of) the target’s position.
While motionless, the technique grants a flat bonus to Awareness of (level x 100)/(distance to target in metres/5). While moving, it grants the smaller bonus of (level x 100)/(distance/3).
Note that if you are unaware of a target and it is outside the reach of your conventional senses (e.g. silent and in a different room), you will receive the bonus when rolling to detect it, but not the benefit of your normal Awareness dice.