Green the growth, deep the seed. Stand high a Tree, to Iftin need. Sweet the wind, soft the rain - Rich the soil, without bane - Straight the sword, sharp the blade. Bright the leaf that does not fade. Still the Mirror, wide and deep, High the Moon that doth keep Silver caught within the Mirror. Stand here, Ift, without fear. Andre Norton, "Victory on Janus"

Useful links:   Other works of Andre Norton