the mind > attention and judgement > attention > earnest attention, concentration > be absorbed in [verb (intransitive)] > be intent (8)
intransitive. To direct the mind or attention, to give heed, to attend; to be intent.
intransitive. To direct the mind or attention; to pay heed; to exert the mind, devote attention, apply oneself assiduously. Const. to, unto, rarely…