emotional state, spirit - the state of a person's emotions (especially with regard to pleasure or dejection); "his emotional state depended on her opinion"; "he was in good spirits"; "his spirit rose"

bliss, blissfulness, cloud nine, seventh heaven, walking on air - a state of extreme happiness

MDMA, methylenedioxymethamphetamine - a stimulant drug that is chemically related to mescaline and amphetamine and is used illicitly for its euphoric and hallucinogenic effects; it was formerly used in psychotherapy but in 1985 it was declared illegal in the United States; "MDMA is often used at parties because it enables party-goers to remain active for long periods of time"