intimate link/connection etc
From Longman Dictionary of Contemporary Englishintimate link/connection etcintimate link/connection etcCONNECTED WITHa very close connection between two things the intimate connection between physical and mental health → intimateExamples from the Corpusintimate link/connection etc• Traditionally, an intimate connection has been seen between style and an author's personality.• Mythologies all over the world describe the intimate connection, often antipathy, between birds and snakes.• Heat had intimate links with chemistry, and optics with astronomy.