The Left Angle Cross of Upheaval carries the same four gates as the Juxtaposition Cross of Opinions, held here in the fated Left Angle family instead. Human Design reads Gate 17, from Hexagram 17, Following, sits in the Ajna and is read as logical opinions that want to be organised and offered to others; and Gate 18, from Hexagram 18, Work on the Decayed, sits in the Spleen and is read as an alertness to what is flawed and could be set right. It falls in the Left Angle family, which practitioners read as fated in flavour, serving something beyond the individual rather than a self chosen plan.
Its design half is Gate 38 and Gate 39, both in the Root, unchanged from the Cross of Opinions. Gate 38 is read as the drive to oppose, needing something worth opposing so the fight has a point; it pairs with Gate 28 in the channel of Struggle. Gate 39 is read as the pressure that stirs feeling in others, to discover whether there is any spirit in them; it pairs with Gate 55 in the channel of Emoting.
Where the Juxtaposition reading fixes this opinion and correction to a single profile, the Left Angle reading holds the same Root pair of opposition and provocation as a role circumstance keeps handing back rather than a personal choice. The hexagrams are ancient; grouping them into one transpersonal cross is the modern system's own construction, dated to 1987.