Most of us would be aware of the importance of cleansing and purification for evolution.
Proper diet suitable to the individual , mindset , bodily movement , letting go, donation etc are all part of it. But these are all conscious ones. There is greater purification taking place and that can be considered as tapas for the individual and maybe also people close to him/her. These are the challenges, pain and sacrifices in the life’s of individual. While going through go them is indeed difficult it maybe necessary for the spiritual evolution . After the challenging situation one may strange sense of relief or pranic release. One may not understand that after this while this strange feeling it is sign that material world and spiritual world have their own ways of working. Just observe it.