The Six Destinies

Does anyone know what they are and you can you give me a brief, concise explanaition? Yes, I did do an internet search and came up with a lot of Buddhist sites that refer to them. The problem is, it would take too much time that I don't have right now, to read through chapters of phiolosophy in order to get a basic idea of what they are and what they symbolize. The sites I looked at seem to all have a chapter devoted to each destiny. I just need a paragraph on each or even just a couple of sentences for now

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