"The Vedas declare that whenever the mind wanders, the three worlds will be perceived. What are these three worlds? All are familiar with the pronouncements in the Gita and in the Gayatri Mantra. The three worlds are: Bhu, Bhuvah, Svah (the Bhu-loka,Bhuvar-loka and Swarga). These three are present in man: Aadibhoutika, Aadidaivika and Aadhyatmik). These three worshipped by our ancients are: Durga, Lakshmi and Saraswati. Every form is that of Durga, the deity that is associated with energy (Shakti). There is infinite power within man, power that is beyond comprehension and which is divine. But he makes no effort to recognise it. What is the power that makes the earth revolve round itself? It is not any machine or mantra. The power is within the earth itself. This energy, present in man and other objects, has been characterized as cosmic power. The sun derives its energy and effulgence from this cosmic source. It is the same cosmic source that accounts for the power of the human mind and the marvellous power of the eye to see the most distant stars."
Sai Baba, SS, 11/94. p. 287 & 288