Pitar Paksh is going on in the name of Shradh.
Pitar Dev is Dev that regulates the truth unto spirit especially here after but influence the day to day life of man on the planet through varying chapter available to him,
If ancestors or related departed souls are not happy in that world for reasons beyond perception may influence the concern one adversely through afflicting the fate is one of the truth man faces as per Hindu Notes,
Pitar Paksh is most suited span of the year to please Pitar Dev to attain blessings for a favorable Fate,
Indeed fate rules the life and Pitar influence the Fate,
May Lord bless all,
Thanks Please