Just as grinding stone of a water grinding mill cannot be taken away by lifting on head but can be pulled away using some method or machine.
Just as a lion and an elephant cannot be controlled by force, but with the use of special methods can be brought under control conveniently.
Just as a flowing river look dangerous but can be crossed in a boat easily and quickly.
Similarly, pain and sufferings are unbearable and leave a person in an unstable state. But with the advice and initiation of a True Guru, all pain and sufferings are washed away and one becomes quiet, calm and composed. (558)