There's this magic that Capricorn works hard to create that bridges the gap between the spiritual and the material work. Young soul Capricorns work hard in the material world building material empires, while old soul Capricorns are focused on building a life for themselves that is sustainable, meaningful, and purposeful transcending the earth and material worlds. 

The mystical and horizon associated with Saturn explains why most of the Capricorns I’ve known have been artists and really creative people (even though you don’t typically hear astrologers mention that). Straddling the horizon connects a Cap to the creativity of the cosmos.