Used in expressions like 'as (one pleases/one is told/one is led)' or 'according to'; indicates doing something according to a state, instruction, or one's wishes — e.g. 'as one pleases,' 'as instructed,' or 'wherever (one's feet take one).'
子どもを思うままに遊ばせておいた。
I let the children play as they pleased.
地図の示すままに進んだら、目的地に着いた。
I followed the map and went as it showed, and arrived at the destination.
足の向くままに街を歩くのが好きだ。
I like walking through the city wherever my feet take me.