Complex sentence: Kinbaku implies "kokoro"; heart, spirit, mind and cannot be reached by skills of ropes/knots alone, but also requires ie transferring of ki-energy to take the model on the mental/spiritual ride.
Split into simpler sentences: Kinbaku implies "kokoro"; heart, spirit, mind. And cannot be reached by skills of ropes/knots alone, but also requires ie transferring of ki-energy to take the model on the mental/spiritual ride.