It is being there as the sun rises, the early morning mist, the scent of the forest. It is an emotion impossible to describe when you find your first mushroom. A true gatherer must understand the sky, the weather, the breeding habits of the mushroom - he must be able to commune with nature.
There is even an expression in Russian - gribny dozhd, or mushroom rain - to describe the rain after sunshine which is perfect for the fungi.