The meaning of the symbols of monsterous, thing, grabbing seen in a dream.

Trees, Voracious animals and birds.

If these are seen in ones dream (individually or collectively) they may very likely mean men.... examples of geneses of thing dream meaning

Grabbing to a wall, a tree or a branch in a dream means the nearing end of one’s life, depending on how firmly one is grabbing to it. Firmly grabbing to something in a dream is also means holding dearly to a strong man.

(Also see Gripping; Hug)... grabbing dream meaning