extracting elements
If M is an R-module, the best way to think of an element v of M in Macaulay2 is as a map of the ring into M, mapping 1 to v.
The source of this document is in /build/reproducible-path/macaulay2-1.25.05+ds/M2/Macaulay2/packages/Macaulay2Doc/ov_modules.m2:731:0.