Whatever be the meditation, obstacles definitely come in it, many types of sound are also heard, whatever power or deity you do meditation, they create strange experiences to divert the attention from the meditation, all of them to face the difficult situation. Protection mantra is a panacea, no spiritual practice should be done without body protection mantra.
First Defense Mantra-
mantra
Om hoom hoom fat kiriti kiriti ghatay ghatay par vidhnan sfotay sfotay sahrulkhandan kuru kuru par mudran chind chind par mantran bhind bhind kshom kshom vah vah hoom fat swaha!!
(This is the ancient mantra of India, so there should be no change in its word.)
Throw flowers or yellow mustard on yourself after reciting the mantra.
second defense spell
Om anamo arhatanam anamo siddhanam anamo aairiyanam anamo uvajayanam anamo loi svva sahunam iso panch anamokaro svv pavppnasano manlanam cha svessi padham hawai mangal om hoom fat swaha!!
(This is the ancient mantra of India, so there should be no change in its word.)
How to prove this mantra
After reciting the above mantra 7 times, make a circle around you with a paddle.
Third Defense Mantra-
mantra
Om anamo arhatanam hram hradayam raksh raksh hoom fat swaha
Om anamo aairiyanam hoom shikham raksh raksh hoom fat swaha
Om anamo uvajayaanam hrom ehi ehi bhagvati vjra
Kvach vajini raksh raksh hoom fat swaha
Om anamo loi svva sahurnam ham kshipram sadhay sadhay vajrahaste bhulini dushtan raksh raksh hoom fat swaha!!
(This is the ancient mantra of India, so there should be no change in its word.)
After reading this, draw a coil around you with your finger and think that this is a coat of forest all around me. Make this coat and pinch it all around. It means that all the trouble makers should go away. I am sitting on Vajshila inside Bajkot. This doesn’t cause any kind of disturbance.
Raksha Sutra Bandhan-
mantra
Om hi namohate sarv raksh raksh hoom fat swaha!!
(This is the ancient mantra of India, so there should be no change in its word.)
Wrap it three times in the right hand and tie it.
It is necessary to protect oneself before doing any meditation, if a sadhaka (seeker) wants to do Mahakali, Kaal Bhairav, Betal meditation, Jinnat(this is powerful god) meditation and other cremation meditation then it is necessary to protect him.
Sadhak(seeker) can protect himself with any one of the above mentioned Raksha (protection) mantra.
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 can protect himself with any one of the above mentioned (protection) mantra.){kind=link}