May Allah grant the eternal paradise of Jannathul Firdouse to your father, UkEng...and may he give you and all your family the strength and sabr in coping with your loss.. Aameen!
It is when a parent passes away that we as their offspring can actually continue to benefit them in the hear-after by constantly praying for them.
Prophet Muhammad(peace be upon him)said:

When a person dies, his good deeds come to an end, except for three good deeds: Charity(by which people get benefits on an ongoing basis), a righteous child who prays for him and knowledge (by which people get benefits on an ongoing basis). (Muslim)