I Grant You Ample Leave

"I grant you ample leave
    To use the hoary formula 'I am'
    Naming the emptiness where thought is not;
    But fill the void with definition, 'I'
    Will be no more a datum than the words
    You link false inference with, the 'Since' & 'so'
    That, true or not, make up the atom-whirl.
    Resolve your 'Ego', it is all one web
    With vibrant ether clotted into worlds:
  Your subject, self, or self-assertive 'I'
  Turns nought but object, melts to molecules,
  Is stripped from naked Being with the rest
  Of those rag-garments named the Universe.
  Or if, in strife to keep your 'Ego' strong
  You make it weaver of the etherial light,
  Space, motion, solids & the dream of Time --
  Why, still 'tis Being looking from the dark,
  The core, the centre of your consciousness,
  That notes your bubble-world: sense, pleasure, pain,
  What are they but a shifting otherness,
  Phantasmal flux of moments? --"