Default [Q] new to xperia z1 rooting

hi first of all am a noob when it comes it comes to rooting the xperia z1. The current android version am using is kitkat 14.3.A.0.681 and am using C6903 and i have seen posts on how to root it in this forum my issue is am a bit confused especially with stuff like unlock bootloader relock bootloader, CMW , downgrading etc i would really appreciate it if anybody could explain to me in detail how to root it especially direct rooting if theres any available or the procedure which requires downgrading
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