Each book hands you one diagnostic instrument. Together they read the whole structure.
Read the gauge. Hold the shape.
Absorb the hit. Hold nothing.
Check the connections. Tighten what holds.
Distribute the load. Take the swing.
Where the hub sends the Intimacy reading.
Mind→B1 · Emotion→B2 · Friend→B3 · Identity→B4 · Intimacy→B5.