Your take that the was is a dog's tail with head and neck rings which symbolizes the ascent to spiritual fulfillment through the boundaries of growth is beautiful that's all I can say. We know from the Pyramid Texts that Naunet (Nun's wife) was the counterpart of the duat for the imperishable stars. Rolf Krauss makes a descent case that Horus was Venus and Set was Mercury. He concurs with previous authors that Sirius was Isis....and around Sirius we have canis major, the dog. So I'd say your thesis that the was is basically an icon of canis major is a very creative idea worth pursuing. The only thing I can add is that neck rings were a sign of domestication so there may be an archetypal meaning hidden there which symbolizes the power of man over nature and the wild beast and this was later expanded with the spiritual overtones you cite. The regularity of time the ancients learned when they studied the Moon and the sense of order and empowerment over the cycles of time makes Thoth the perfect god to symbolize man's ability to harness nature's powers and survive and so the was in his hand symbolizing the stellar marker of rains and floods, Sirius as per your thesis, fits well.
I posted something else for you about Seneb which will interest you...it's below.
Edited 1 time(s). Last edit at 24-Oct-17 15:35 by Manu.