Interconnectedness
When you put two items into water, they become somehow more proximate to one another. Imagine two people swimming together; They are somehow more connected than if they were simply standing in a room.
When you put two items into fire, they somehow become more mixed with one another. Imagine placing paper and metal into a fire; They meld into one another as the flame takes them both.
When you bury two items into the earth, they somehow become more a part of the ground together. Imagine two beloved past pets buried in your backyward; They are somehow both parts of the same space.
When you put two items in the same air, they still somehow become more a part of one another! We don't think of it often, but we share air regularly with trees, animals, and other human beings.
Who are you sharing air with today, and how might that bring the two of you closer to one another?