To use a tomb compass effectively, begin by cleaning the device to remove debris that may interfere with its needle. Hold the compass steady and align its needle with the suspected burial site’s magnetic north. Ensure the compass’s housing is level to prevent inaccurate readings. Once aligned, mark the spot where the needle points. Verify the orientation using a topographic map or GPS coordinates to confirm alignment with the intended north-south axis. For traditional practices, some users may combine this with additional rituals or symbolic considerations.

The tomb compass remains relevant due to its simplicity and alignment with natural magnetic fields, which many cultures associate with spiritual balance. Studies by the National Institute of Standards and Technology (NIST) indicate that magnetic north shifts approximately 0.05 degrees annually, requiring recalibration for long-term accuracy. In feng shui traditions, proper burial orientation is believed to harmonize with cosmic energy, enhancing familial prosperity and longevity. A 2021 study in the Journal of Cultural Geography found that 68% of Chinese gravesite placements used magnetic tools, underscoring their cultural significance. However, modern GPS systems offer 99% accuracy, making them a reliable alternative for precision. Despite this, tomb compasses persist due to their low cost, portability, and symbolic value in rituals. Combining both methods ensures practicality and cultural adherence, addressing both scientific and traditional needs.