impulses

desire feeling inclination influence instinct motivation motive notion passion thought whim wish

actuation appeal bent caprice catalyst disposition excitant extemporization fancy flash goad hunch impulsion incitation incitement inspiration itch lash lust mind spontaneity spur urge vagary whimsy yen

impellent

concrete discouragement dislike hate hatred thing

reality truth

impetus movement pulse vibration

augmentation beat bump catalyst drive force impulsion lash momentum pressure propulsion pulsation push rush shock shove stroke surge thrust

pull