If the key is clear, click on the title and leave the solution below.

Things may come and go from me,

But I sit still my name's the key

I know where I belong, it's mine,

For I was firstly here assigned,

And find that I'm in love, though she won't take my bridal wreath;

For I'm beneath.

'So what exactly can your name open?'
'Nothing, it is not that kind of key, unless we say it opens your mind.'
'Gosh, that sounds painful.'

Riddle Answer A Station

Riddle Explanation
I sit still my name's the key - to be stationary.

I know where I belong, it's mine - to know one's station.

for I was firstly here assigned - to station someone, somewhere.

I'm in love, though she won't take my bridal wreath; for I'm beneath - to marry beneath one's station.