As jasper wrote, How does Japa

know that he does something?

The first “does” is the auxiliary verb which allows to turn sentence into a question. The second “do” is an auxiliary verb. The verb is the action in itself, but not conjugated because of the conjugation.

How does he form the sentence “What’s the truth?” If you feel awkward about how it sounds, you could say for example:

How can he do that?

Is there a true spiritual purpose to everyday life?