The binding legal principles established are: (1) Section 3(3)(a) of the National Forests Act 84 of 1998 provides guiding principles that are directory, not peremptory, to be considered and applied in a balanced way. (2) 'Destruction' of natural forests in section 3(3)(a) refers to destruction of the forest (or a portion thereof) that makes land available for new use, not merely cutting, disturbing, damaging or destroying individual indigenous trees. (3) The prohibition in section 7(1)(a) distinguishes between 'cut, disturb, damage' and 'destroy' as separate activities; to destroy a tree means to put an end to its existence. (4) Whether prohibited activities constitute 'destruction' of natural forest is a question of degree to be determined on individual facts, considering number, nature, location, extent and distribution of affected trees in context of the entire forest. (5) An administrative body with statutory discretion may adopt guiding policies but must not treat them as hard and fast rules applied invariably; each case must be considered on its merits with the policy serving only as a guide, not a decisive factor. (6) Failure to properly interpret the statutory provision and/or rigid adherence to policy without considering individual merits constitutes reviewable administrative action under PAJA sections 6(2)(d) (material error of law) and 6(2)(e)(iii) (irrelevant considerations taken into account).