Nouns / phrases:
Moon, night, evening. Autumn, winter. Quiet, rest, respite. Sleep, dream.
Darkness (literally and figuratively speaking); that of which we are only half-aware; the subconscious. Vague guesses, foreboding, inkling, intuition.
Psyche, soul. Emotions, emotionality. Especially: fears, needs, sadness, melancholy. Emotional upheaval, trauma.
Depth, profoundness, profundity, significance, importance. "Still waters run deep."
For some readers also: attention, recognition, praise, popularity, fame, imagination, creativity, art, romance, attraction, attractiveness.
To spend an evening/a night with something or someone. To quieten down, rest, sleep, dream.
To darken. To be only half aware; to only guess, have an inkling/foreboding/intuition.
To feel something strongly; to fear, need, weep.
To deepen, amplify, be immersed in something.
Moonlit, nightly, vespertine. Quiet, restful, restorative; resting. Tired, sleepy, sleeping.
Dark (literally and figuratively speaking), obscure, half-aware, subconscious. Full of foreboding, intuitive.
Emotional, soulful. Fearful, needy, sad, melancholic. Emotionally upset, traumatised.
Deep, profound, signifiant, important.
As a person: Someone soulful. Someone fearful/needy/sad. Nocturnal person;
person who is tired or asleep.
Someone who appears in our dreams. A still water running deep. An intuitive person. Someone who is traumatised. Someone who is very important to the querent.
Take an nap; rest more! Listen to your intuition! It's important! Negatively: Don't get worked up emotionally!
Time factor *) : Evening, night time; late autumn and winter. When it's quiet. After you've rested.