Rigor is not the whole point of math. Understanding is. Rigor is a tool for producing understanding. For a further articulation of this point, see
https://arxiv.org/abs/math/9404236
This conflates rigor with proof. Proof is the solve to the argument you are making. Rigor is how carefully and correctly the argument is made. You can understand something without rigor but you cannot prove it.
This conflates rigor with proof. Proof is the solve to the argument you are making. Rigor is how carefully and correctly the argument is made. You can understand something without rigor but you cannot prove it.