SIGNIFICANCE OF RASAYANA (REJUVENATING TONICS)

Rasa in Sanskrit means essence or emotion and ayana means path. Hence, rasayana roughly translates to - The path of the essence. Rasa nourishes body, boosts immunity and helps to keep the body and mind in best of health.
Rasayanas are the rejuvenating tonics as mentioned in Ayurveda. They provide vital energy to our body. They are herbs which promote the circulation in the body and enable the vital essence to reach each and every cell of the body.
In the recent researches, it has been found that many leading diseases are caused by the insufficient levels of oxygen in the body. Studies show that when a cell is deprived of 35 % of required levels of oxygen for 48 hours, the cells can become cancerous even. In all such cases, rasayanas play a vital role.

• Rasayanas enhances the circulation and metabolism at cellular level. In fact, they let the oxygen to reach the minute entities and cells
• Enhances the assimilation and delivery of nutrients to the tissues and cells to maintain their structure and perform various activities
• Improves vigor and strength to the healthy persons
• Promotes longevity, general health and immunity (power to fight diseases)
• Rasayanas work like a buffer solution as they help us to achieve homeostatic balance in the body. They help to maintain the physiology of a system to be normal. So, they can perform in both ways: eliminating toxins and providing building blocks to various systems of the body.
• Relieves  the mental or physical stress in the body 
• Delays the aging process. 
• Enhances the immunity and prevent the diseases. Moreover, they prevent the diseases from reoccurring.

Thus, we can conclude that rasayanas are very potent energy boosters which enhance the body’s inner capability to fight infections OR prevent diseases..