Some people believe that evil spirits can enter into a person's body and cause negative experiences, such as fear or anxiety. The belief is that these experiences are more likely to occur in people with weak minds, but can be prevented or resolved through the practice of Raja Yoga meditation.
Raja Yoga is a form of yoga that focuses on meditation and mental control as the means to attain spiritual enlightenment. The text suggests that practicing Raja Yoga meditation can help to strengthen one's mind and reduce the risk of being influenced by negative experiences, as it involves training the mind to be calm and focused, and to maintain a state of inner peace and tranquility. The text also mentions that Raja Yoga is free to practice and open to all.