it sounds to me like you're mixing up the concept of
emergence with entropy. emergence is very cool! and scientists don't fully understand it. here's
a good approach of emergence from a philosophical standpoint.
but i do want to clarify about entropy. entropy is not when "a pattern emerges from chaos," it's more like the opposite. a low entropy state is less statistically likely--this is where energy is more "ordered" or concentrated. as time passes, the system will tend towards the most statistically likely configuration, which is considered a high entropy state: a system where energy is more "disordered" and dispersed. basically, there are only a few ways for a system to have order, but many more ways for a system to have disorder.
for example, think about all of the possible ways that a billion grains of sand could be configured. something like a sandcastle is statistically unlikely, there are only a few possible ways to achieve that. so that's a low entropy state. as time goes on, those billion grains of sand will tend towards a more statistically likely configuration (that is, a higher entropy state): for example, a pile of sand. if you have a pile of sand and a sand castle, and a gust of wind comes by, what is more likely to happen: the wind makes the pile of sand become a sandcastle? or the wind makes the sandcastle become a pile of sand?
because the universe is young, the universe is currently in a low entropy state. matter and energy is concentrated in certain areas of the universe: this is why planets and stars exist. and this low entropy state makes life possible: without the earth, the sun, or the solar system, life would not exist. as time passes, most physicists believe that matter and energy will become more and more evenly distributed throughout the universe, because this is the more statistically likely configuration. this would eventually make life physically impossible to sustain in the universe. imo the concept of entropy would make most people feel more nihilistic, not less.
personally, i don't believe in a higher power or any intentional being creating the universe, so i don't see how or why there would be inherent meaning or purpose to life. i do believe people can come up with their own sense of meaning or purpose, but that's a solely human creation. this puts me more in the camp of nihilists, existentialists, and absurdists.