Cranberries exhibit absorption and release properties during growth. Cranberry reason means the cranberry in the growth process shows the characteristics of absorption and release, the cranberry grows in the wetland or swamp, through the absorption of water and nutrients in the soil, as well as the release of acidic substances, able to decompose the organic matter in the soil, so that the soil becomes more fertile, this characteristic is regarded as a unique feature of the cranberry, but also become a metaphor for the life of the reason for the absorption and release. In real life, people also often draw on the characteristics of the cranberry to emphasize the growing process of absorbing knowledge and experience, while releasing positive energy and contributing their own strength. This metaphor also represents that people should be like cranberries in life, through continuous learning and accumulation of experience, to improve their own ability, and pass this energy to those around them, **** with the realization of self-growth and help others grow.