These then exit, and behold others are entering, from the aspect of those of whom it is stated: (Ez. 1:7) And their legs were a straight leg... ‘Circular’ legs are a straight leg... And there are other legs, which are square, of the Ophanim, of whom it is stated: (Ez. 1:17) Upon their four sides in their going they went... For of them: (Ez. 1:14) And the ḥayot were rushing forward and back, like the appearance of the flash (bezeq)... And those ‘circular legs’ are like vowel-points – for the letters, which are ‘square legs’.