Comment by bergerjac

I used to have have aphantasia.

Now, I can visualize and pre-plan projects and events in my mind's eye.

To get started I never did any techniques. Instead, I just listened to fantasy & fiction audiobooks (eg by GRRM and Joe Abercrombie).

Once I started seeing scenes in my imagination, I made the connection that "This is just like daydreaming or thinking of memories!"

Then I took some training on personal growth which practiced changing the size, color, dimensions, etc and now it's become a powerful tool.