In Ayurveda medicines are divided into two categories i.e.
- Medicines which promote strength and immunity in healthy person.
- Medicines which alleviates disorders.
Medicines which promote strength and immunity in healthy person are included in rasayana.
Why Rasayan chikitsa is necessary –
Because of rasayan chikitsa one can attains longevity, memory, intelligence, freedom from disease, youthful age, excellence of lustre, complexion and voice, optimum strength of physique and sense organs, successful words, respectability and brilliance, attains excellent saptadhatus.