Nurturing, support, emotional bonding, belonging; roots, source.
Ground of your being.
The unconscious, feelings, emotion, first emotional attachments to the world.
Mothering, emotional and physical nurturing.
Experiences and imprinting during infancy and childhood.
Family, ancestors, heritage, relationships to the past.
Belonging, feeling at home, caring.
Feeling supported by the world, that your needs are provided for.
Insecurities and fears if your needs haven't been fulfilled.