We are not actually sure about that. But just to give you a feel of what was in the Rig Veda, and I encourage you to go look at the actual primary text, and there's a lot of there to read. It includes prayers, it includes praise of the gods, it includes rituals, but it also has a lot of interesting philosophy. And for example, this is part of, this is from the Rig Veda. This is a hymn referred to as Nasadiyasukta, and it's in, you could use it as the 10th book, the 129th hymn. And I find it really interesting because it shows a fairly mature philosophical attitude. This is actually the origin hymn, and this is just part of it.