To unlock the Visionary trophy in The Bridge, you will first have to complete the four main chapters of the game and unlock the "first" ending:
You can either enter the Mirror World outside the house by the tree, or you can enter the Mirror World inside each of the Chapter corridors. You need to interact with the white wire frame box to switch between the Standard and Mirror Worlds.
To get this trophy you need to complete all 6 Mirrored Puzzles in each of the 4 Mirrored Chapters. You can find full guides attached to each chapter completion trophy below:
Once you have completed all Mirrored Chapters and walked across the bridge once again the Visionary trophy will unlock.