These individual cells are not able to live independently of the whole body. Similarly we are all cells in the Universal Organism and are not able to live independently of the whole. Earth is a solid state of matter whose characteristics are stability, fixity and rigidity. It creates a feeling of groundedness and security in the individual. It is a stable substance.
Water is the liquid state of matter which has a flowing, dissolving, carrying and cleansing quality.
It is a substance without stability. Fire has the ability to transform solids to liquids to gas and vice versa. It is the power in the body. It is without substance. Air is the gaseous state of matter whose characteristic is mobility.