a legend in one's own lifetime

The phrase "a legend in one's own lifetime" refers to a person who is widely recognized and highly esteemed for their exceptional achievements, skills, or talents while they are still alive. It suggests that the individual has achieved such remarkable status and reputation that they are regarded as being on par with or even surpassing the stature of legendary figures or icons in their respective field or industry. In other words, they have become a source of inspiration and admiration for others during their own lifetime.