The phrase "abandon oneself to fate" refers to accepting one's destiny, often in a negative or fatalistic way. However, there are many other ways to convey this concept. Some synonyms for this phrase include yielding to destiny, resigning oneself to fate, submitting to the outcome, surrendering to the unknown, and succumbing to one's destiny. Each of these phrases implies a sense of surrender or giving up control over one's situation. However, it is important to note that while accepting one's fate can be necessary at times, it is also important to strive for agency and control over one's life whenever possible.