The phrase "bring a close" typically refers to the act of ending or concluding something, and there are several antonyms that can be used to describe the opposite effect. One option is to say that you are prolonging or extending an event or situation, which would suggest a desire to continue rather than conclude. Alternatively, you could use the word "initiate" to describe the beginning of something new or the starting point for a new endeavor. Another antonym might be "renew," which implies a fresh start or a revitalization of something that may have been stagnant or stagnant for some time. Ultimately, the choice of antonym will depend on the specific context and desired effect, but there are many options available to express the opposite of bringing something to a close.