Rather than being based on medical research, using the scientific method, Bach's flower remedies were intuitively derived and based on his perceived psychic connections to the plants. If he felt a negative emotion, he would hold his hand over different plants, and if one alleviated the emotion, he would ascribe the power to heal that emotional problem to that plant. He believed that early morning sunlight passing through dew-drops on flower petals transferred the healing power of the flower onto the water, so he would collect the dew drops from the plants and preserve the dew with an equal amount of brandy to produce a mother tincture which would be further diluted before use. Later, he found that the amount of dew he could collect was not sufficient, so he would suspend flowers in spring water and allow the sun's rays to pass through them.