Vaak is speech or sound. It is Vaak that describes them, it is Vaak that declares them and it is Vaak that denotes them. All objects are also of the World or Prithvi.
Nothing can go beyond it.
And, the Prana cannot move outside and beyond the Hridaya. The Gayathri has four feet and six categories. The Purusha that is extolled by this Gayathri is indeed exalted, sacred, glorious. All this objective multiplicity, as has been said, is but a fraction of His Body. The other three quarters are His Effulgent Immortal Form.