The Ambiyaa (Alayhimus Salaam): Seeing the prophets of Allah is the same as seeing the angels of Allah Ta’ala suggesting freshness, plentiful rains, reduction of prices of things etc. There is only one exception: the observer will not attain shahaadah by seeing the ambiyaa (AS) as is in the case of seeing the angels of Allah.
Becoming a Nabi: If anyone sees that he has become (any) one of the former apostles of Allah it means that he will be afflicted with similar hardships suffered by that particular Nabi. But he will finally attain success and be granted acceptance in both the worlds. His grief and sorrow will also come-to an end.