Madison I think your lamp example is great! MIEventer's response was hilarious, yes! But I think the picture you painted is helpful and accurate...it's got the basics of how my trainer has been teaching Sandie to collect lately anyway!
First of all, this is the internet and we should be reading everything with at least one grain of salt to begin with. And I usually post sarcastically to the point where it is ridiculously obvious I'm kidding.
Second of all, the shear amount of these threads lately is frustrating. The first thread I can thoughtfully post in, the second one I might quote my first post, the third one I might read and then the fourth, fifth, sixth and possibly seventh ones I will politely ignore. After that I just get really annoyed at people's lack of ability to use the search button or even look through the first page of the dressage board, the english board or the training board.
Finally, we should get our terms right. To collect a horse is to shift weight onto their hind legs, shorten their body and change the stride from moving forward and long to short and high. To round a horse is to get their head and neck to stretch down, "Tuck their nose in" and stretch over the back. And a half halt is not an aid to get the horse round, it is an aid to re balance the horse and increase the amount of collection and self carriage.