While lying completely exhausted on the ground, Daniel experiences a sudden intervention that begins to rouse him. He is touched by what is not necessarily a regular physical hand, but rather the form of a hand [ביאור שטיינזלץ]. This form represents the influence of the angel delivering the vision. This angelic mediation serves a crucial protective purpose, shielding Daniel from the overwhelming and unbearable intensity of experiencing the presence of God directly [יוסף אבן יחיא].
The angel then moves and shakes him [מצודת ציון]. This action is understood in two complementary ways. It functions much like a person shaking a sleeping friend to wake him [רש״י, מצודת דוד], while simultaneously serving to physically strengthen Daniel and lift his sprawling body from the earth [מלבי״ם, ביאור שטיינזלץ].
Despite this assistance, his recovery is only partial. His extreme weakness prevents him from standing upright. Instead, the angel's touch only manages to raise him onto his knees and the palms of his hands [יוסף אבן יחיא, ביאור שטיינזלץ]. Resting on all fours, he remains trembling and filled with anxiety [מלבי״ם].