Sometimes, words are overrated when the 'connection' is strong!
A child’s foremost relationships are the ones that are formed with parents (or other primary caregivers). The two are connected with an invisible bond of love & trust through the wavering tides and experiences of life. Due to the innumerable verbal and non-verbal interactions exchanged between the parent and the child, they both get attuned to each other’s signals and behavior.
The toddler knows its mama’s work time when she has laid out some toys to keep him busy in the afternoon. Vice versa too, the mother knows that her child is annoyed just by reading his facial expressions or certain silent activities.
This important attachment therefore sets the stage for various other positive relationships that the child is going to build with the people around him as s/he grows up and interacts with a world beyond their immediate family.