This Chinese phrase suggests that a good host will make guests feel like they are returning home or are as comfortable as they would be at their own homes.

賓至如歸 is also the Chinese equivalent of “a home away from home,” and is used by Chinese hotels, guest houses, and inns to suggest the level of their hospitality that will make you feel at home during your stay.

四海為家 literally reads, “Four Seas Serve-As [my/one's] Home.”

Together, 四海 which literally means “four seas” is understood to mean “the whole world” or “the seven seas.” It's presumed to be an ancient word from back when only four seas were known - so it equates to the modern English term, “seven seas.”

This can be translated or understood in a few different ways:
To regard the four corners of the world all as home.
To feel at home anywhere.
To roam about unconstrained.
To consider the entire country, or the world, to be one's own.

抱歉 is the feeling of being or feeling sorry or apologetic.

The idea of being regretful. Not quite the same thing as sorrow.

Note: This is a strange thing to write on a wall scroll for Chinese people - but you can bend the rules if you want in the west.

不怕人老只怕心老 literally translates as: Do not be concerned about being old; be concerned about a mind which is old.

Figuratively, this means: You are not as old as you look, you are only as old as you think you are.