瞬间的想法 meaning in English

fugitive thoughts impressions sensations etc

Really , we forget . even just one fleeting thought like that , and we forget immediately after half an hour of getting out of meditation . how would we remember our past life , our glory in heaven , our original home , our wisdom , our greatness
真的，是我们忘记了，即使只是瞬间的想法，打坐后半个小时，你也记不得，何况能记得我们的过去世在天堂上的荣耀我们原本的家我们的智慧以及伟大呢？