"Blessed arrival" means "blessed arrival" (homophonic)
Generally speaking, the word "Fu" is pasted upside down on the innermost objects of the house, indicating that when the house is innermost, the whole house will be full of blessings.
Of course, there are other things to pay attention to when posting blessings. Not all New Year pictures with blessings can be posted backwards (as others say, please refer to them), so be careful when posting backwards.