Everything either occurs or does not. That would appear to be a fact of nature. Happiness, however, is not accidental.
To be happy, appreciate the sense fields and attempt to live more fully in the moment. Do not complicate your experience with concepts. Employ concept less than vision. Employ concept less than hearing. Employ concept less than tactility. Employ concept less than fragrancing. Employ concept less than savouring.
p239, Emailing the Lamas from Afar, Ngakpa Chögyam and Khandro Déchen, Aro Books, 2009, ISBN 978-0-9653948-5-7