This famous quote from William Wordsworth's Ode : Intimations of Immortality from Recollections of Early Childhood (1802-04) expresses the more direct experience of heaven's presence in early childhood, something most adults instinctively recognise in the innocent joys of youth.  There is also at least a hint of reincarnation when Wordsworth proclaims :
  'Our birth is but a sleep and a forgetting;
  The soul that rises with us, our life's star,
       Hath had elsewhere its setting,
          And comes from afar;
      Not in entire forgetfulness,
      And not in utter nakedness,
But trailing clouds of glory do we come
              From God, who is our home;
Heaven lies about us in our infancy !
Shades of the prison house begin to close 
              Upon the growig boy...'

For the astrologer whose main concern is the Natal Horoscope which is the precise pattern of the planets at the  moment of birth, the significance of this quote is slightly different.   The birth chart determines to a great extent our life's course and our psychological character and shows how intimately the powers of heaven are involved in our birth. 

A proper understanding of astrology will confirm this influence is always benign and designed to lead us to our better selves, even when it seems the lessons which life has to teach us are conspicuously ignored.  No one can ignore the truth for ever and the iron laws of life are suspended for no one.   Eastern wisdom, where reincarnation is not in doubt, explains the law of karma, the law of desire and judgement, operates inescpably from life to life.   It is not difficult to see those who are condemned to a season in hell while others seem specially blessed.  But equally our guardian angels never abandon us.