Grounding: fertilising the soil making sure weeds have no chance to grow. (Avoiding and preventing the arising of unwholesome states and unskillful thoughts which have not yet arisen.)
Weeding: when the weeds grow on to the ground, gently pulling them out and put them in a compost. (Abandoning unwholesome states and unskillful thoughts which have already arisen. )
Cultivating: cultivating wholesome seeds that are still hidden underneath, helping them to grow. (Cultivating, developing and bringing forth wholesome states and skilful thoughts which have not yet arisen.)
Nurturing: Caring for the flowers, the trees, the plants and the seedlings that have emerged out of the soil. Nurturing them and helping them grow, blossom and bear fruits. (Maintaining and sustaining wholesome states and skilful thoughts which have already arisen.)