Combine cashews, lemon juice, sea salt, chia seeds, and 4 cups water in a blender or food processor and process until smooth and creamy. Transfer to covered container and refrigerate until ice cold. (Put into freezer for quicker chill time.) This is the “yogurt.”
In a glass jar or bowl with lid, layer “yogurt,” fruit, and date paste, alternately. For a sweeter combination, add more date paste with each layer. Top with “yogurt” and cover. Refrigerate for 2 to 4 hours, or until ice cold. Mixture thickens as it chills.
Soak six pitted dates in water to cover in a jar until they are very soft (best done the day before). Then, “mash” the dates in the water against the side of the jar with a teaspoon.