Ancestor worship is very popular in Asia. Asian people take great care in preserving the memories of their ancestors and honoring them with regular prayers and offerings. Ancestor worship is such an integral part of Asian culture that many would not even recognize it as a religion; it's just a part of life.
Ok, that is the background.
For example, look at this picture. First the person will touch his 2 palms together like in the picture & look at the altar.
Then he will slowly bow down like in this picture.
He, then, may repeat that movement two or more times to pray or worship.
Sometimes, he may do the same but with some burned sticks of incense between their two palms like in this picture.
worship [transitive] worship somebody/something to show respect for God or a god, especially by saying prayers, singing, etc. with other people in a religious building
The Mayans built jungle pyramids to worship their gods.
pray [intransitive, transitive] to speak to God, especially to give thanks or ask for help
They knelt down and prayed.
pray for somebody/something I'll pray for you.
to pray for peace
pray to somebody (for somebody/something) She prayed to God for an end to her sufferings.
pray (that)… We prayed (that) she would recover from her illness.
pray to do something He prayed to be forgiven.
- speech ‘Please God don't let it happen,’ she prayed.
Do we say he is praying for his grandpa or he is worshiping his grandpa?