The first divine encounter in a young prophet's life unfolds in the dead of night, marked not by grand visions, but by a tangible sound that sparks natural confusion. God calls out to the boy by his name [ביאור שטיינזלץ], with the divine voice originating directly from the Holy of Holies within the Sanctuary. A remarkable miracle occurs in how the sound travels. Even though Eli the priest is sleeping closer to the inner sanctuary and Samuel the Levite is resting further outside, the voice of God supernaturally bypasses Eli altogether, reaching only Samuel's ears [רש״י].
Rather than presenting itself as an abstract spiritual experience, the call sounds exactly like a normal, physical human voice [אברבנאל]. Hearing what he believes is his mentor, Samuel responds instantly to announce his presence [מצודת ציון], expressing his complete readiness and attention [ביאור שטיינזלץ]. He calls back immediately from his bed because he assumes Eli needs him, wanting to prove right away that he is fully awake and alert [מלבי״ם].
When the boy gets up and runs to him, the elderly priest does not suspect that a prophetic event is taking place. Instead, Eli assumes that the young boy's imagination is playing tricks on him. He believes that internal excitement has caused Samuel to mistakenly interpret his own strong feelings as an actual, external sound. Viewing this as a common psychological reaction during moments of physical weakness or emotional turmoil, Eli is convinced that the boy is simply imagining the voice and instructs him to go back to sleep [אברבנאל].