"they beheld" Him, "he was taken up ... out of their sight," they "looked," stedfastly toward heaven "gazing up into heaven," and they had "seen him go into heaven." His ascension into heaven was an actual event! Jesus was taken up from Earth to heaven literally and personally. He went in clouds, so He will return in clouds. "This same Jesus"—the very same Person. They saw Him go: we'll see Him come back. It's no secret event. Jesus ascended with an actual physical body—not as some ghostly spirit or intangible essence!