I understand your confusion. I forget that most people don't habitually work with dreams.
The visions took place in the sky and clouds. Maybe you could try thinking about the man again, the way you did before you had the visions of the heart and clouds, but only this time think about standing with him on the ground and then see what images crop up.
Sometimes by putting two contrasting images together, you can get a meaning out of the dreams.
As for the sword, this is an image that has different meanings. For some, it conjures up images of fairy tales such as the Knights of the Round Table and Sir Lancelot. Or it could be a symbol for justice.
So, what do swords mean to you? What about the heart? Did it remind you of anything you've seen in movies or art? How did it make you feel?
Were the clouds dark and stormy, or light and airy?
Descriptions of the images and how you feel about them also provide clues to what the dream or vision was trying to tell you.
Good Luck!
