Top: schematic representation of the main components in the central region of NGC 1068: the CND, the outer edges of the outflow bicone, and the three regions (B, C, and D) analyzed in this work. The field of view of the SINFONI observation is indicated with a pink square. Bottom: [Si VI] emission line map in the central region of NGC 1068 obtained with the SINFONI observation (pixel scale 50 mas) and position of the SPHERE slit (red lines, roughly aligned with the jet orientation). The coordinates are centered on the position of the K band continuum maximum. Following the naming convention from Evans et al. (1991), the three regions studied in this paper are cloud B (in the center; at the same position as the radio component S1 and the compact torus), cloud C (0.25″ north), and cloud D (0.7″ north).