There are complex faculties engaged when creating sculpture. It is a balancing act – spatial awareness, composition, balance, proportion, structure, choices of symmetry or asymmetry, movement, rhythm, harmony and so on.
Of course, for all artists, the emphasis on each of these will vary. Add other ingredients, such as taste, inspiration and aspiration, and the recipe becomes complicated indeed.
I find I rely greatly on instinct, intuition, or eye, being able to discern in the results of my own working methods a balance of the clumsy or elegant, the meaningful or banal, the weak or strong. I have found these sub-conscious thoughts difficult to rationalise and almost impossible to articulate.
I accept that life and art are partially inexplicable and intangible. It is just so.