I figure we were meant to mimic everything else which is to grow or spiral into one body like cells or a galaxy
Only if you are a rather unevolved organism like an insect or a frog that is incapable of care for others. Most higher animals such as the African Grey Parrot, the dog, the monkey, the cat, the dolphin, the elephant and even the lowly laboratory rat will choose to lose something they value to prevent something bad happening to a companion, even if they do not know said companion.
For example, a rat will pass up a bowl of delicious chocolate to prevent another rat from being shocked in the lab.
Obviously all organisms do have a sense of self preservation but it does not mean everyone for themselves.
Or because they care about others and don't want them to be hurt, just as humans do.
I read a study that showed the rats would also free other rats from cages to share the chocolate. The rat could just as easily have eaten it all up and then, getting bored, release its friend, but it chose to let the other rat enjoy the treat with it.
Spend life as u please.