Greetings @bleujay, have a blessed day!

The arrangement with roses in combination with this vase looks great and I will wait to see the embodiment of this in watercolor by you, I am sure it will be magnificent.

As for the phrase, then I, in my personal life, or, relying on life experience lol, will say that this phrase has no meaning, or will not lead from point A to point B, if we do not learn to stand still.

Yes, it means to stand firmly in place and this is an intermediate phase between moving forward and retreating.

Standing still in obedience to God, having His revelations, and He often points to our state of rest, when everything around explodes and collapses, can be much more difficult than trying to advance or retreat.
Something like that :)
!BEER !LOLZ