Why does Gustav von Aschenbach travel to Venice in Death in Venice?

In the novella Death in Venice by Thomas Mann, the protagonist Gustav von Aschenbach travels to Venice primarily to seek relaxation from the overstrain of his life as a disciplined, intellectual writer.123

The catalyst for his journey occurs while he is strolling past a cemetery; he encounters a traveling stranger, which sparks a sudden, intense desire to visit the Mediterranean region. Aschenbach, whose life and work are defined by rigid formal perfection and cerebral control, finds his usual discipline challenged by the sensuous atmosphere of Venice. Once there, his initial pursuit of rest is overtaken by an obsessive infatuation with a young boy named Tadzio, leading to a tragic decline that culminates in his death during a cholera epidemic.123