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), and a reasonable soul (Matthew 26:38; Hebrews 4:15), being conceived by the power of the Holy Spirit in the Virgin Mary, and was born of her (Luke 1:31,35), yet without sin (Hebrews 7:26).