Imagine a beautiful nursery having fragrant and colourful flowers. The Gardener has the knowledge of how to cultivate them, trim them, grow them etc. He plants the seeds and gives adequate manure and water. He has the knowledge of which seed needs how much of what resource. Once this is done the plant grows, he protects them from bad weather, directs them towards sunlight. He experiments , learns and practices this daily. The solutions and process that he devises to make the nursery blooming forms his knowledge and the craft. Now, when the plant grows up and starts blooming, starts giving beautiful flowers, whose fragrance is felt all across the locality, the whole locality enjoys it. But now neither the locality knows how this happened nor the plant knows. And in fact the process forward is even more beautiful and autonomous. Once the flower grows, one of its part becomes fruit. the locality enjoys the fruit. Then the seeds of the same fruit fall on the ground