"True calling" refers to a person's innate or natural purpose in life. It is the activity or work that resonates with their passions, talents, and values, bringing them fulfillment and a sense of meaning. Full definition
In addition to proving that Kirstie Alley should be involved in every conversation on the planet for eternity, Jason Bateman's New York Times profile makes a strong argument for Bateman's true calling as ensemble player, best as a supportive -LSB-...] (vulture.com)
It looks like this game will be releasing this November in true Call of Duty tradition. (maxlevel.org)
Beyond their elegant, powerful visuals, Visualmodo's true calling card is how easily their theme adapt for virtually any visitor. (thenextweb.com)