Based on your text, can be defined as full engagement with one's own internal mental processes in a nonconfrontational way, which often involves a reduction in

The answer in the spaces provided are the following—mindfulness; experienal avoidance. It is because mindfulness is the one that is termed when one is engaged with its own internal mental process in which they are usually linked with experiental avoidance that is being reduced.

there are no options provided but you can choose among the following gender-neutral pronouns: zir, hir, eir, vis, tem, eir.

in the normal course of maintaining a pronoun-antecedent agreement, we could have used the words his or her but since we are also required to use gender-neutral language, we need to replace it with its equivalent gender-neutral pronoun.