Some people do google searches – what are the benefits of Kevali pranayama? Or benefits of a certain type of asana ? Or a mantra? Or kriya yoga?
The correct question is – what is kebali? Teach me how to do it If those two things are done you know the results better than any scripture , Upanishad Or you know what is in Upanishad and more !
Same for other things. Problem is no one wants to find someone who can teach. Even after taught it takes many years to learn it.
If your impatient for results you will never get it.
Bhavin