Final answer:
The passage suggests Michelangelo saw sculpting as his true calling, which is apparent through his anguish and reluctance in painting the Sistine Chapel ceiling, and his passion for sculpting as reflected in his masterpieces.
Step-by-step explanation:
Based on the details provided in the passage, the reader can conclude that Michelangelo felt sculpting was his true calling. This is evidenced by his belief that sculpture was the purest, highest form of art, and his dedication to the craft is evident through the passion and attention to detail in his works such as the Pieta. Moreover, despite his fame as a painter for the Sistine Chapel ceiling, it is clear that he accepted this task under duress, indicating a preference for sculpture over painting. Michelangelo's discomfort while painting the Sistine Chapel, his reluctance to accept the commission, and his feeling that painting should be left to others, further reinforce this conclusion.