During the early vedic age became as important as herding animals

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.

~kinetic ~potential

explanation:

kinetic and potential energies would be types of mechanical energies.

answer; nonpartisan election;