Ketu or South Node of Moon is a planet that typically signifies detachment, spirituality, and moksha or liberation. Ketu placed in Magha Nakshatra, which is ruled by the planet Ketu itself can bring out some diverse results. Magha is known for bringing societal pride and an inclination towards social hierarchy. Hence, Ketu's placement here can signify detachment from societal norms or even rebellion against them with a strong pursuit of individual identity or spiritual enlightenment.