Spoilers for the second trial if you haven't done it already.
During the second trial there is a room with two sentinels and an archway. After defeating the sentinels you activate ancient magic to turn the archway into a portal between the "blue" and "red" realms. There is a block in one of the realms that turns into a pillar in the other realm.
For the last dozen playthroughs of the game, my fiancé followed my advice and would Wingardium Leviosa the block from one side of the portal to the other, placing it back on the platform it starts on, so that when going back through the portal she could climb on it to get on the bridge.
Today, without even thinking of it, she simply cast Levioso o

