Yeah, can you clarify what your actual idea is?
It's not my idea, it's a quote from the textbook I was reading. But, as far as I could tell, the idea was adapted from the British House of Lords but would have meant for the states that an independent commission (either put into place by the Governor or the state house) would appoint 'distinguished citizens' to the state senate who would not be subject to facing elections.
The exact powers this appointed state senate would have was not spelled out, but I gather it was meant to provide a sort of legislative review of state house legislation in much the same way that courts provide judicial review. (The concept of judicial review was no where near as established in the 1700s as it is now.) This could also be seen as being similar to the veto that governors have now, but the governors were very weak at that time and at present a governor's veto is often a result of their craven political instincts which presumably this body, not having to face elections, would have been above.