Dreaming of snakes in water and on land

Assalamualaikum Mufti Sahab, I saw this dream when I slept after Ishrak Salat and I was in itekaaf in this Ramadaan itself. I guess it was 29th Ramadaan morning. Before sleeping I just tried to recall the Grave and I was thinking how will be the snakes and other deadly animals in the grave so a preparation is needed for the life after death. And thinking about this I slept AlhamduliLLAH but what I saw in my dream that there is one man who has died and laying on the ground, face is shining and looking very bright(Nooraani). And far from him on a ground I saw many snakes whose half body was in water and half on land. And there were some snakes which were fully on land and they were moving. In my dream itself I questioned or I thought that these snakes are not so big they are just like the normal ones we have today so there was a reply to my thought that you will not be able to bear if we show the real snakes of Grave to you and then I saw myself that I am very much frightened and I was breathing very fast as if I am very scared and then I got up immediately. Kindly interpret to me this dream. JazakALLAHU khair.