Rejecting clinging to both pleasure and displeasure
Not clinging to pleasure does not mean there is no pleasure. It is the opposite. The more there is non-clinging, there more there is pleasure. For example, the suttas say the pleasure of 'jhana' ('meditative absorption') is reached by making 'non-clinging' the meditation object (SN 48.10). Or the suttas say Nibbana is the supreme pleasure (Dhammapada 204). 

When Ajahn Chah refers to the word 'like', this is not synonymous with the words 'pleasure' &amp; 'happiness'. 'Pleasure' is a 'feeling'. Where as 'like' is a 'view' or 'opinion'.