penetrate

enter a group or organization in order to spy on the members

become clear or enter one's consciousness or emotions

“she was penetrated with sorrow”

spread or diffuse through

“music penetrated the entire building”

pass into or through, often by overcoming resistance

“The bullet penetrated her chest”

come to understand

insert the penis into the vagina or anus of

“Did the molester penetrate the child?”

make one's way deeper into or through

“The hikers did not manage to penetrate the dense forest”