Sentence:  From the moment of the incarnation, thus brought about, of the future Buddha, four angels, with swords in their hands, stood guard over the Bodisat and his mother, to shield them from all harm. Pure in thought, having reached the highest aim and the highest honour, the mother was happy and <WSD>unwearied</WSD>; and she saw the child within her as plainly as one could see a thread passed through a transparent gem. 
Meaning of the word marked with <WSD> tags:  Not wearied, not tired.