This is a simple chanting for "Inviting" energy of Deities to enter into the Statues.
Kai Guang Shen Zhou:
This is a simple chanting for "Sending off" the energy inside the Statues.
Tui Shen Shen Zhou: 
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Usually for normal families Statues, the family members will send them off to temples, if they are not going to continue offering them at home.
For those who have learnt, they can performed the "Sending off" rituals by own, if not, please engage any Masters who are capable of doing so.
If you are not able to engage any Masters (at affordable price), try getting Masters in temples, they are more than willing to help. (Just offered them a small token after the ritual)
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Points to Ponder:1. after "Kai Guang", yet to invite them onto the Altar, please Cover the statue's Eyes with a red-cloth/paper, place the Kimsin at a high level area, do not offer any joss to the statue yet.
Once the altar's ready, open the red-cloth/paper, communicate with the Deities, asking them to "Sit" on the Main Altar.
2. after "Tui Shen", no matter where you sending the statues to, please cover the Eyes with red-cloth/paper. This process is to avoid any wandering spirits entering the statues.
After covering the Eyes, you can send them off to the destinated area.