So this is our service attitude. It is our eternal attitude. It cannot be changed. Just like faith. Today I am Muslim; tomorrow I may become Hindu. Today I am Christian; tomorrow I may become Muslim. The faith can be changed, but my character is still that I am servant. That cannot be changed. It does not mean . . . suppose you are working in office. Now today you are Hindu or tomorrow you become Muslim. Does it mean in the office you be . . . become master? No. The service is there. Either you change your faith or don't change your faith, your characteristic to serve will continue. That is the reality. That is sanātana. Sanātana means eternal. Try to understand.
So sanātana, this word has been used in three or four places in the Bhagavad-gītā. Mamaivāṁśo jīva-bhūta jīva-loka sanātana (BG 15.7). Sanātana. These living entities, they are sanātana. And another place in the Eighth Chapter in Bhagavad-gītā, this sanātana word is used: paras tasmāt tu bhāva anya 'vyakto 'vyaktāt sanātanaḥ (BG 8.20). There is another sky. Just like we are seeing this sky. This is called material sky, and we are seeing the sky in one universe.
We, according to our Vedic information, the sky which you are seeing, this is the sky of one of the universes. And there are millions of universes. We get this information from Vedic literature, Brahma-saṁhitā: yasya prabhā prabhavato jagad-aṇḍa-koṭi (Bs. 5.40). Jagad-aṇḍa means universe, and koṭi means millions. So the sky which we're seeing before us, this is one of the sky of the universe. There are millions. And all these universes combined together is one part creation of the Supreme Personality of Godhead.