How did Christ, being the Son of God become man?

Christ the Son of God became man by taking to himself a true body (Hebrews 2:14,17; 10:5), and a reasonable soul (Matthew 26:38); being conceived by the power of the Holy Spirit in the womb of the Virgin Mary, and born of her (Luke 1:27,31,34-35,42; Galatians 4:4), yet without sin (Hebrews 4:15; 7:26).