Sentence:  You could just use ordinary shop-bought kecap manis to marinade the meat, but making your own is easy, has a far more elegant fragrance and is, above all, such a great brag! Flavouring kecap manis is an intensely <WSD>personal</WSD> thing, so try this version now and next time cook the sauce down with crushed, split lemongrass and a shredded lime leaf. 
Meaning of the word marked with <WSD> tags:  Of or pertaining to a particular person; relating to, or affecting, an individual, or each of many individuals; peculiar or proper to private concerns; not public or general