Oversimplified schematic view of the different components of the diffuse emission along the line of sight toward the eFEDS field. Left panel: Galactic disk (in yellow) with a scale height of ~100 pc. Energetic activity in the disk (yellow stars) generates copious amounts of hot plasma, which (when confined to the disk) inflates bubbles, super-bubbles (blue circles), forming features similar to the LHB (red circle). Sometimes the energetic activity has enough power to produce an outflow that breaks free into the Galactic corona, forming chimneys or fountains. Therefore, this process releases hot plasma, energy, metals, and particles that energize and sustain the Galactic corona. Within the corona the intermediate and high velocity clouds (IVC and HVC, respectively) are observed, composed primarily of atomic hydrogen (red ellipses). It is likely that the intermediate velocity HI clouds represent the other phase of a cycle where hot material is expelled from the disk to then come back as cold gas. Right panel: Extent of the virial radius of the Milky Way (blue sphere), which is a proxy for the extent of the CGM, compared with the extent of the Galactic disk (assumed here to have a diameter of 40 kpc). The Galactic corona (green) is depicted above and below the Galactic disk and within it the IVC (red ellipses), while within the CGM the very high velocity clouds (VHVC) are represented (red ellipses). The yellow bipolar ellipses at the center of the disk represent the eROSITA bubbles.