They tend to singularities — described by Still as the «
vertical necessity of life» — that stand up in a confronting tall or wide surface plane spread with colour, co-existent with thresholds and borders.
Still explains the «ascending verticality» and «aspirational thrust» of his canvases throughout his career as taking root in his early landscape painting which he described as «records of air and light, yet always inevitably with the rising forms or
the vertical necessity of life dominating the horizon... And so was born and became intrinsic this elemental characteristic on my life and my work.»