Overwhelmed by the terrifying and majestic vision of the Divine chariot, the prophet collapses to the ground in awe. A heavenly voice suddenly breaks through the silence, addressing him directly [ביאור שטיינזלץ]. The voice instructs him to rise to his feet to receive his new mission, assuring the prophet that it will speak with him [מצודת ציון, רד״ק, ביאור שטיינזלץ].
The instruction to stand is necessary simply because the prophet is lying prostrate on the earth [מצודת דוד]. However, rising serves a greater purpose. It is a gesture of profound respect toward the angelic messenger speaking to him. More than that, it is a call to action. By standing, the prophet is told to gather his strength, prepare himself, and be completely ready to embark on God's mission [אברבנאל]. On a deeper spiritual level, the act of standing upright is meant to correct and fortify an ancient spiritual weakness rooted in the soul of Cain, which is mystically associated with the concept of the feet [חומת אנך].
The Divine voice addresses the prophet with a unique title, calling him a son of man. The primary approach among commentators is that this name is meant to keep the prophet humble. Having just witnessed the heavenly chariot and the highest ranks of angels, he might easily become arrogant, perhaps even viewing himself as an angelic being. The title serves as a grounding reminder that he is merely flesh and blood, born of a woman [רש״י, מצודת דוד, רד״ק, אברבנאל].
Conversely, this title can be seen not as a warning, but as high praise. In the vision of the chariot, one of the four faces revealed was that of a human. Being called a son of man highlights that the prophet is upright and favorable in God's eyes. He embodies human intellect and wisdom, distinct from the physical strength of the lion, the wealth of the ox, or the dominance of the eagle [רד״ק, אברבנאל].
Another perspective reveals a deep historical parallel between the prophet and the first man, Adam. Just as Adam was driven out of the Garden of Eden, the prophet was exiled from Jerusalem. Adam grieved deeply for his descendants who perished in the great flood, much like the prophet mourns the destruction of his people in exile. Furthermore, just as Adam was left with one son to rebuild the world, a surviving remnant from the prophet's exile will eventually return to Zion [אברבנאל]. Finally, some connect this title literally to the prophet's spiritual lineage, suggesting his soul is secretly bound to Cain, the literal son of the first man [חומת אנך].