It (Tao) is eternally without desire. So, it can be called small. All things return to it, although it does not make itself their ruler. So, it can be called great.
When the desire ain't on me I don't need help. When it is on me I don't want any. See? Like the old fellah that never mended his roof. Said on a wet day he couldn't do it and on a dry day it was as good as anybody's.
Desire can be eradicated from the roots by firmly imbibing the four attributes of: Jnan, Atmanishtha, Vairagya, Dharma and the full fledged devotion to God.
Tis an old lesson; time approves it true, And those who know it best, deplore it most; When all is won that all desire to woo, The paltry prize is hardly worth the cost.