From what I have heard Sruthi as opposed to revelations is not the words of God but his breath.  They also exist eternally like God and are considered as God's breath.  That is why the sages who have revealed parts of it are called mantra drashta or those who have 'seen' the mantra.  When some of the passages of the Vedas are examined they state that in the matter of God it is anirvachaneeyam or beyond any words/description.  In the Vaishnava siddhanta SriVaikuntam is considered as a state of mind by some of the preceptors.  This is similar to some of the concepts of the branches of philosophy that do not consider the vedas as the ultimate authority