- Swami Sivananda
- Divine Life Society, Hrishikesh
Dhyana or meditation is in the keeping up of the flow of one idea with a continuity as unbroken as the flow of oil. Meditation is of two kinds, viz., concrete and abstract. If you meditate on any picture or concrete object it is concrete meditation. If you meditate on an abstract idea, on any quality such as mercy, tolerance, it is abstract meditation. A beginner should practise concrete meditation. For some aspirants, abstract meditation is more easy than concrete meditation.
An informative and instructive handbook on the all-important art and science of meditation. This is also a primer on the technique of concentrating on the unbroken flow of one idea.