the meridian system

involvement

be involved in, be engaged, enter the picture

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

system, family / style

deep, profound

a piece of research, a study, investigation

to research, to study