hi KA i have also come to the conclusion that mano as a sense organ may also be the dhamma chakku (the spiritual eye, the wisdom eye or the 'third eye') thus, when the Buddha used the sense sphere triad of (1) mano; (2) dhamma & (3) mano-vinnana, mano may also be the "sense organ" that sees dhamma or truth although mano as the "dhamma eye" does not make sense in respect to the arising of suffering, as i previously speculated, this possibly just means the "dhamma eye" is underdeveloped when suffering arises with metta element