Help me with "come into" collocations

Question

I've just learned that the meaning of "come into" is : be important or relevant.

However I don't get the following sentence:

to come into a person's possession without having been paid for.

Does someone would show me the most commons collocations and respective meanings of "come into" in some sentences?

I've found some examples which I got the meaning:

[come into something] to be an aspect of a situation

• The argument was over artistic freedom – money never came into it.

  ---

[come into something] if you come into something, it becomes yours when someone dies

• He’s just come into some money

  ---

come into your own to show how effective or useful you can be

• In the wintry conditions the Norwegian team really came into their own.

Answer 1

These are all idiomatic expressions that centre around a more basic definition of "come in" which means to enter, or join something.

To come into a person's possession means that something which once did not belong to the person has now become their possession. It is like the item has joined a group, the person's existing possessions.

To come into [a situation] means to enter a situation that already existed - for example, if you started working for a company and they were already in financial difficulty when you became employed by them, you might say that was a situation you had come into.

Come into money means that you suddenly went from having little or no money, to having a considerable amount. It often refers to inheritances, so again, the money already existed and you came into it.

Come into your own means to find that you are successful at something, particularly if you have suddenly found a hidden talent - so the talent was already there, dormant in you, and now you have found it.

These idioms are really unrelated and not used in exactly the same sentence structures - the only thing they really have in common is different idiomatic uses of the phrasal verb "to come in".